Ethos Examples in Ads

Short answer

• Ethos in advertising is persuasion through credibility. An ad uses ethos when it gives the audience a reason to trust the speaker, the brand, or the product, rather than only giving a reasoned argument or stirring an emotion. A famous athlete holding a sports drink, a dentist in a white coat recommending toothpaste, a customer describing a good experience in her own words, and a badge showing years in business are all ethos in advertising examples, because each one answers the same unspoken question: why should I believe this message? The idea comes from Aristotle, who treated the character of the speaker as one of three means of persuasion, alongside emotion and argument. In a modern ad, the "speaker" may be a celebrity, an expert, an ordinary customer, or the brand itself. The test for the reader is the same in every case. Ask who is vouching for the product, what qualifies that person to vouch for it, and whether the trust signal is backed by anything checkable. This article explains that test, works through the main kinds of ethos examples in ads, and shows how to spot weak or misleading credibility signals before acting on them.

What Ethos Means

Ethos is a Greek word that is usually translated as character. In rhetoric, it names the persuasion that comes from the speaker rather than from the argument or the audience’s feelings. Aristotle’s Rhetoric treats persuasion as working through three means: the character of the speaker, the emotional state of the listener, and the argument itself. Later writers kept those three labels, ethos, pathos, and logos, and they remain the standard vocabulary for talking about persuasion today.

That origin matters for advertising because it sets a useful boundary. Ethos is not the same thing as ethics, although the two words share a root. An ad can be effective at building trust without being honest, and an honest company can fail to communicate its trustworthiness. Ethos describes how credibility is presented and perceived, not whether the underlying claim is true. A reader who understands that distinction can admire a well made credibility signal while still checking the facts behind it.

Aristotle also made a point that modern advertisers would recognize at once. In his account, a speaker builds credibility by what the speaker says in the speech, not simply by having a good reputation before speaking. A pre-existing reputation may help an audience listen, but the persuasive work still has to happen in the message itself. The same is true of an ad. A famous brand still has to say something credible in the ad, and an unknown brand can still earn attention by presenting its evidence clearly.

For a speaker to appear credible, Aristotle pointed to three qualities: practical intelligence or competence, a virtuous character, and goodwill toward the audience. The same speaker credibility matters in live speeches, as covered in Amberaisle’s guide to building confidence in public speaking. In plain terms, the audience asks three questions. Does this speaker know what she is talking about? Is she honest? And is she acting in my interest, or only in her own? An ad that answers all three questions well has strong ethos. An ad that answers only one, for example by showing competence without honesty, leaves the audience with a reason to hesitate.

Ethos, Pathos, and Logos in One Ad

Most ads do not use a single appeal. A typical commercial blends all three, and learning to separate them makes each one easier to judge. Logos is the appeal to reason: facts, figures, comparisons, and arguments about price, performance, or features. Pathos is the appeal to emotion: music, images, humor, fear, nostalgia, or hope. Ethos is the appeal to credibility: who is speaking, what qualifies them, and why the audience should trust them.

Consider a short invented ad for a neighborhood bakery. The ad states that the bakery uses stone ground flour and bakes every loaf on the day it is sold. That is logos, a factual claim about the product. The ad shows warm light, a smiling family at breakfast, and gentle music. That is pathos, an emotional invitation to feel at home. The ad also notes that the baker trained for ten years, that the bakery has served the same street for twenty years, and that a local food writer calls the bread the best in the district. That is ethos, a set of credibility signals about the baker, the business, and an outside voice.

Separating the appeals in this way has a practical benefit. A reader can accept the emotional warmth of an ad while still asking whether the credibility signals hold up. A famous face can make an ad enjoyable without making its claims true. A moving story can be genuine without proving that a product works. And a strong set of facts can be undermined if the person presenting them has an undisclosed reason to praise the product. Each appeal deserves its own check.

How Ethos Works in an Ad

Ethos in an ad usually works in one of three ways, and most real ads combine at least two of them. The first is borrowed credibility. The brand borrows trust from someone the audience already respects, such as a celebrity, an expert, or a well known organization. The second is built credibility. The brand presents its own record: years in business, awards, certifications, guarantees, or a visible history of satisfied customers. The third is shown credibility. The ad demonstrates competence or care directly, for example by showing a workshop, a testing process, or a founder explaining a product in detail.

Borrowed credibility is the fastest of the three, which is also why it is the most open to abuse. A familiar face can transfer warmth and admiration to a product in a few seconds, before the audience has time to ask whether the person knows anything about the product. Built credibility is slower but sturdier, because it rests on a record that can be checked. Shown credibility sits between the two: a demonstration can be persuasive, but a staged demonstration can also mislead if the audience mistakes a performance for proof.

Ethos is one part of promotion, which Amberaisle’s guide to the 4 Ps of Marketing places alongside product, price, and place. A useful habit is to name the mechanism before judging the ad. Ask whether the trust is borrowed, built, or shown, and then ask what would confirm it. Borrowed trust can be confirmed by checking whether the endorser has relevant expertise and whether any payment or partnership is disclosed. Built trust can be confirmed by checking the award, certification, or review source behind the badge. Shown trust can be confirmed by asking whether the demonstration tests the product in a realistic way. The rest of this article applies that habit to each major type of ethos example.

Celebrity Endorsement Examples

Celebrity endorsement is the most recognizable form of ethos in advertising, and it works mainly through borrowed credibility. The audience already knows the celebrity, admires something about them, and transfers some of that admiration to the product. The transfer can be powerful even when the celebrity has no special expertise in the product category.

A classic example is a sports drink campaign built around a famous basketball player. The ad does not need to explain the chemistry of hydration in detail, because the athlete’s presence does the persuasive work. The implied message runs something like this: a champion at the peak of physical performance chooses this drink, so the drink must support that level of performance. The logic is incomplete, since an elite athlete’s success depends on training, coaching, genetics, and many other factors, but the credibility signal is immediate and easy to grasp.

A second pattern is the actor or musician endorsing a product outside their field, such as a film star appearing in an ad for a car, a watch, or a soft drink. Here the borrowed credibility is not expertise but fame, taste, and lifestyle. The audience is invited to share in the celebrity’s world by buying the same product. This can be honest advertising when the endorsement is clearly presented as a paid partnership and the celebrity genuinely uses the product, but it is weak evidence about quality. Fame is not a test result, and admiration for a performer is not a reason to believe a technical claim.

A third pattern is the celebrity founder or co-owner, where a well known person lends a name to a brand rather than appearing in a single ad. This sits closer to built credibility, because the celebrity’s reputation is tied to the business over time. Even here, the reader should separate the person’s public image from the product’s record. A beloved performer can front a poorly run company, and a little known founder can run an excellent one. The celebrity signal is a starting point for trust, not a substitute for checking reviews, terms, and return policies.

The key question for any celebrity ad is fit. Does the celebrity’s actual experience relate to the product? A professional athlete endorsing sports equipment has relevant experience. The same athlete endorsing a financial product does not, and the ad is then relying on fame alone. Fit does not make an endorsement automatically trustworthy, but a poor fit is a clear warning that the ad is selling admiration rather than evidence.

Expert and Professional Authority Examples

Expert authority is ethos at its most direct: someone who knows the subject tells the audience what to think. In ads, this appears as a dentist recommending toothpaste, a doctor discussing a health product, a chef praising cookware, or a mechanic explaining motor oil. The professional title, the uniform, and the setting all signal competence before a single claim is made.

Toothpaste advertising offers the clearest illustration. Many toothpaste ads feature a person in a white coat, sometimes identified as a dentist, praising the product or citing professional recommendations. The pattern is so familiar that audiences recognize it instantly, and that familiarity is part of its power. The credibility signal works even when the viewer cannot name the dentist or check the study behind the recommendation, which is exactly why the reader should pause. A real professional recommendation is checkable: it names the professional, the basis for the recommendation, and any limits on the claim. A costume and a confident tone are not the same thing.

A stronger version of expert ethos names the expertise and shows its limits. An ad might feature a named engineer explaining one specific design choice, such as why a shoe sole uses a particular pattern, and then show the test that supports the claim. Another might feature a named chef who explains why a pan’s weight matters for even cooking, rather than simply smiling beside the pan. In both cases, the expert is doing expert work in the ad, not merely lending a title to a slogan. The audience can follow the reasoning, even if it cannot repeat the test at home.

A weaker version relies on the trappings of expertise without the substance. An actor in a lab coat, a narrator with an authoritative voice, or a vague reference to “studies” or “experts” can create the feeling of authority while giving the audience nothing to verify. The same caution applies to titles used loosely. A person described only as a “specialist” or an “expert” may have genuine qualifications, but the ad has chosen not to show them. When an ad asks the audience to trust expertise, it is fair to ask whose expertise, in what field, and on what evidence.

Readers should also watch for the difference between a professional’s opinion and a professional consensus. One dentist may prefer a product while most dentists do not, and one study may support a claim while larger reviews do not. An ad that presents a single voice as if it represented a whole profession is using ethos to exaggerate. A careful ad, by contrast, states what the expert actually said and lets the audience weigh it alongside other evidence.

Brand Trust Signals: History, Awards, and Guarantees

Not every ethos example needs a person. Brands also build credibility through signals about themselves: how long they have operated, what awards they have won, what certifications they hold, and what guarantees they offer. These signals belong to built credibility, and they are often the most checkable form of ethos in an ad.

Years in business is a common trust signal. An ad that notes a company has served customers for decades invites the audience to reason that a poor business would not survive that long. That reasoning has some force, but it is not conclusive. A business can survive through habit, location, or lack of competition rather than quality, and a new business can be excellent. The signal is most useful when it is paired with something specific, such as a long record of published reviews or a clear history of the company’s work.

Awards and rankings work in a similar way. An ad that cites a “best rated” award or a top ranking is borrowing credibility from the awarding body. The value of the signal depends entirely on who gave the award and how it was decided. An award from an independent testing organization with published methods carries more weight than an award from a trade group with a pay to enter scheme, and a ranking based on verified sales or testing carries more weight than one based on votes on the advertiser’s own website. When an ad names an award without naming the awarding body or the year, the audience cannot judge it, and that omission is itself informative.

Certifications, licenses, and memberships are stronger signals when they are real and relevant. A plumbing company that displays a current license, a food business that shows an inspection grade, or a financial firm that names its regulator is giving the audience a checkable fact. The reader can verify a license or look up a regulator, and the business knows it. By contrast, a badge that looks official but names no authority, or a certification in an unrelated field, is decoration rather than evidence.

Guarantees and return policies are a different kind of trust signal. A money back guarantee or a free trial does not prove that a product works, but it does shift risk from the buyer to the seller, and that shift is itself a credibility statement. The business is saying, in effect, that it is confident enough to bear the cost of disappointment. As with other signals, the details matter. A guarantee with narrow conditions, short deadlines, or costly return steps is weaker than it first appears, so the reader should check the terms rather than the headline.

Testimonials and Customer Reviews

Testimonials are ethos in the voice of ordinary customers. Instead of a celebrity or an expert, the ad presents someone like the audience: a parent, a commuter, a small business owner, or a first time buyer. The implied message is that real people with similar needs have tried the product and are satisfied, so the reader can expect a similar result.

A typical testimonial ad shows a customer describing a problem, explaining how the product helped, and expressing satisfaction. The power of the form comes from identification. The viewer thinks, “That person is like me, so their experience might predict mine.” That reasoning is natural, but it is also fragile. One satisfied customer does not prove that most customers are satisfied, and a testimonial selected by the advertiser is unlikely to be a representative sample. Advertisers choose their best stories, not their average ones.

Star ratings and review counts are the digital version of the testimonial. An ad that displays an average rating and a large number of reviews is offering social proof at a glance. The signal is more useful than a single testimonial when the reviews come from a source the reader can inspect, with dates, verified purchase markers, and a mix of positive and negative opinions. It is much weaker when the ad shows only the average, hides the total number of reviews, or draws reviews from a source the advertiser controls.

Readers should also notice what testimonials leave out. A weight loss testimonial may show an exceptional result without stating what most users achieve. A business testimonial may praise customer service without mentioning price. A before and after image may reflect lighting, timing, or other changes rather than the product alone. None of this makes every testimonial dishonest, but it does mean that a testimonial is a starting point for research rather than a conclusion. The United States Federal Trade Commission’s endorsement guidance reflects the same concern: endorsements must be truthful and not misleading, endorsers should not describe experiences they have not had or make claims that would require proof they do not have, and a connection between an endorser and a marketer that would affect how people judge the endorsement should be disclosed. The guidance was revised in June 2023 to cover modern channels including social media and reviews, and it treats compensated promotion as subject to the same truth in advertising principles as older media.

Social Proof, Community, and Values

Beyond individual testimonials, ads use broader social proof: crowds of happy customers, long lines, busy restaurants, and claims about how many people already use a product. The message is that a large group cannot be wrong, or at least that joining the group is safe. This is ethos in collective form, borrowed from the crowd rather than from one person.

Community and values appeals work in a related way. An ad may show a brand supporting a local team, donating to a cause, using sustainable materials, or telling a founder’s story about starting the business to solve a personal problem. These signals speak to the third of Aristotle’s credibility qualities, goodwill. The brand presents itself as caring about something beyond profit, and the audience is invited to trust a business that shares its values.

Values appeals deserve the same careful reading as other ethos signals. A genuine commitment, such as a published donation record or a certified sourcing standard, can be checked. A vague claim about caring, community, or heritage cannot. The reader should ask what the brand actually does, not only what it says it values. A company that highlights one charitable gift while hiding poor labor practices is using values as a costume, in the same way that an actor in a lab coat uses expertise as a costume.

Heritage stories follow the same pattern. An ad that traces a brand to a founder’s kitchen, a family workshop, or a particular town is building character through narrative. A true heritage story can be informative, because it explains how a product developed and what standards it follows. An invented or exaggerated heritage story is simply a fictional character sketch. The distinction is checkable in many cases: founding dates, locations, and original products can often be verified through business records, news coverage, or the company’s own history page.

Ethos Across Formats

Ethos looks different in different media, even when the underlying trick is the same. In a television commercial, credibility is carried by faces, voices, uniforms, and settings, often in a few seconds. The audience has little time to check a claim before the next scene arrives, which makes visual shorthand, such as a white coat or a trophy shelf, especially powerful. In a print or online display ad, credibility is carried by badges, ratings, short quotations, and logos of partner organizations. The audience can pause and inspect these signals, but many readers skim past them.

Social media ads add a further layer: the endorser may be an influencer whose audience trusts them as a peer rather than as a celebrity. That peer trust can be stronger than celebrity trust, because followers feel they know the person. It is also harder to evaluate, because the commercial relationship may be hidden behind a personal tone. A disclosure label, such as a paid partnership marker, is therefore an important part of the ethos signal. Its absence does not prove deception, but it removes the audience’s chance to weigh the endorsement properly.

Search and shopping ads compress ethos into very little space: a star rating, a review count, a certification badge, or a “best seller” label beside a price. In that compressed form, the audience should be especially cautious about signals that cannot be traced. A rating without a review source, a badge without an issuing body, and a best seller claim without a category or time period are all weak signals dressed as strong ones.

Local advertising offers a useful contrast. A small business ad that names its owner, shows its storefront, and quotes named local customers is using ethos in a form the audience can verify by walking in. That verifiability is the strength of local ethos. By comparison, a national ad that relies on a famous face offers no such check. The lesson generalizes: the easier it is to verify a credibility signal, the more weight it deserves.

When Ethos Misleads

Ethos becomes misleading when the credibility signal points to trust that the product has not earned. The most common failure is a mismatch between the endorser and the claim. A famous person endorsing a technical product they have never used, an actor dressed as a professional, or a “customer” who is actually an employee praising an employer without disclosure all present borrowed credibility that collapses on inspection.

A second failure is selection. Cherry picked testimonials, edited review averages, and awards quoted without context all present a partial record as if it were a full one. The individual statements may be true, but the impression they create is false, because the audience is not shown the rest of the record. This is why review sources that show the full distribution, including negative reviews, are more trustworthy than a single glowing quotation.

A third failure is imitation. Badges, seals, and certifications can be designed to look official without any authority behind them. A seal that resembles a government or standards body mark, a “doctor recommended” claim with no named doctors, and a review score with no review platform are all imitations of credibility. The audience’s defense is to ask for the source: who issued this, where can I check it, and what did they actually test?

A fourth failure is the halo effect, where one good quality is allowed to stand for overall quality. A brand known for excellent customer service may sell a mediocre product. A celebrity admired for athletic skill may endorse an unrelated product. A company praised for charitable giving may still overcharge. Ethos works by association, and associations always oversimplify. The reader’s job is to keep the association narrow: trust the athlete about training, the charity record about giving, and the review record about the product itself, and do not let one transfer automatically to the others.

History also warns against treating ethos as proof. In the past, products later shown to be harmful were promoted with expert sounding voices and professional imagery, and audiences who trusted the presentation had little way to check the underlying evidence. The lesson is not cynicism, since expert and customer voices are often genuinely informative. Persuasive imagery has a long history beyond commerce, as Amberaisle’s guide to World War 1 propaganda posters shows, and the same care in reading images applies to modern ads. The same habit of checking the source helps when an offer looks too good to be true, and Amberaisle’s guide to getting paid to send emails includes scam checks for that kind of offer. The lesson is proportion: a credibility signal should raise or lower confidence by a reasonable amount, not settle the question on its own.

How to Spot Ethos in an Ad: Five Questions

A reader does not need marketing training to analyze an ad. Five questions cover most cases, and they can be asked in under a minute.

First, who is speaking? Identify the voice behind the message: celebrity, expert, customer, founder, or brand. If the voice is unclear, that is already a finding. An ad that hides its speaker is asking for trust without offering anyone to trust.

Second, what qualifies this speaker? Match the speaker’s qualifications to the claim. Relevant experience, training, or a verifiable record counts. Fame, attractiveness, or a confident manner does not, unless the claim is only about taste or lifestyle.

Third, what is the speaker’s connection to the brand? Look for payment, employment, free products, family ties, or ownership. A disclosed connection does not disqualify an endorsement, but an undisclosed one changes how much weight it deserves. Clear disclosure is itself a credibility signal, because it shows the brand is willing to let the audience judge the relationship.

Fourth, what can be checked? Look for a name, a source, a study, an awarding body, or a review platform that can be inspected. A signal with no checkable source is a claim about credibility, not credibility itself. A signal with a checkable source can be tested in seconds with a search.

Fifth, what is missing? Ask whose voices are absent. Are there no ordinary customers, no independent reviews, no terms for the guarantee, no details behind the award? Missing evidence is not proof of dishonesty, but an ad that shows only its best face is asking the audience to generalize from a selected sample.

If an ad passes all five questions, its ethos is strong, and the reader can then turn to the product facts and price with greater confidence. If it fails several, the reader should treat the ad as entertainment or as a lead for further research, not as a recommendation.

Practice: Three Invented Ads Analyzed

The three short ads below are invented for this article. They are not quotations from real campaigns, and they are included so readers can practice the five questions on clear cases.

The first invented ad shows a retired firefighter in uniform saying that a home smoke alarm brand is the one his station trusted. The ethos here is professional authority plus institutional association. The relevant checks are whether the firefighter is real, whether the station actually used the brand, and whether any payment was disclosed. If those checks pass, the endorsement carries real weight, because the speaker has direct experience with the product’s purpose. If the uniform belongs to an actor and no station is named, the ad is costume ethos, and its persuasive force should drop sharply.

The second invented ad shows a popular singer holding a bottle of vitamin water and smiling at the camera, with no spoken claim about health. The ethos here is pure borrowed fame. The singer’s talent is real, but it has no bearing on the drink’s nutritional value. The ad is not necessarily dishonest, since it makes no health claim, but it offers no evidence either. A reader who likes the singer may still buy the drink, but should do so knowing the purchase is driven by admiration, not by information.

The third invented ad shows a small bakery’s storefront, a list of its opening year, a photograph of its owner kneading dough, and three short customer comments with first names and neighborhoods. The ethos here is built and shown: a verifiable history, a visible process, and named local voices. It is not proof that the bread is good, but every signal can be checked by visiting, tasting, or asking a neighbor. For a local purchase, that checkability makes this modest ad more trustworthy than a national ad with a far more famous face.

Comparing the three cases shows the central point of this article. Ethos is not one thing, and it is not automatically good or bad. It is a set of signals, each with its own strength, and the reader’s task is to grade each signal rather than to accept or reject the ad as a whole.

Why Ethos Still Matters for Honest Brands

It is tempting to conclude that credibility signals are only tricks, but that conclusion would be wrong. Honest brands need ethos as much as dishonest ones do, because a new product with no reputation faces a real problem: how can a stranger know it is worth trying? Awards, reviews, expert testing, guarantees, and transparent founder stories are legitimate answers to that problem. They reduce the risk of trying something new, and they reward businesses that invest in quality.

For a small business, ethos is often the main competitive tool against larger rivals. A local shop cannot outspend a national chain, but it can outearn trust by naming its people, showing its work, and publishing genuine customer feedback. Readers who learn to recognize strong ethos can therefore support better businesses, not only avoid worse ones. The same five questions that expose weak signals also highlight strong ones, and a brand that passes them deserves the confidence it earns.

There is also a civic reason to care about ethos. Advertising shapes which products, services, and ideas gain public trust, and misleading credibility signals distort that process. When audiences learn to ask who is speaking, what qualifies them, and what can be checked, they make the whole market slightly harder to manipulate. That skill transfers beyond shopping: the same questions help readers judge political messages, health claims, and online influencers, where the speaker’s credibility is often the entire argument.

Ethos, then, is worth studying precisely because it is powerful. It can carry a good product to the audience it deserves, and it can carry a poor product past the scrutiny it deserves. The difference lies not in the technique but in the evidence behind it, and that evidence is something any careful reader can learn to inspect.

Frequently Asked Questions

What is ethos in advertising in simple terms?

Ethos in advertising is persuasion through trust. An ad uses ethos when it shows a credible speaker, a trustworthy brand record, or satisfied customers, so that the audience has a reason to believe the message. It is one of three classic appeals, alongside logos, which appeals to reason, and pathos, which appeals to emotion.

What is the difference between ethos and logos in ads?

Logos gives reasons and evidence about the product itself, such as features, test results, or price comparisons. Ethos gives reasons to trust the person or brand presenting those reasons, such as expertise, a strong record, or positive reviews. An ad can have strong logos and weak ethos, for example a sound argument presented by an undisclosed paid endorser, or strong ethos and weak logos, such as a trusted expert making a vague claim.

What are some common ethos examples in ads?

Common examples include celebrity endorsements, expert recommendations from professionals such as dentists or chefs, customer testimonials, star ratings and review counts, awards and certifications, years in business, money back guarantees, and founder or heritage stories. Each type works by borrowing, building, or showing credibility, and each one should be judged on whether its underlying signal can be checked.

Can a celebrity endorsement be honest ethos?

Yes, when the endorsement is genuine, the celebrity actually uses the product, any payment or partnership is disclosed, and the ad does not claim expertise the celebrity lacks. A disclosed endorsement from a celebrity with relevant experience, such as an athlete endorsing sports equipment, is stronger than an undisclosed endorsement from a celebrity with no connection to the product category.

How can I tell if an ad’s expert is real?

Look for a full name, a specific qualification, and a field that matches the claim. A named professional explaining one specific point, with evidence the audience can follow, is stronger than an unnamed person in a uniform making a general claim. If the ad gives no name, no qualification, and no source, treat the expertise as unproven, and search for the person or the claim before relying on it.

Are customer testimonials reliable evidence?

Testimonials are useful as a starting point but weak as proof on their own, because advertisers select their best stories and a single experience does not show what most customers experience. Testimonials carry more weight when they come from a review source the reader can inspect, with many reviews, dates, and a mix of positive and negative opinions, rather than from a single quotation chosen by the advertiser.

What should I do when an ad’s credibility signal cannot be checked?

Treat the signal as unproven and look for other evidence before buying. Check the product’s specifications, independent reviews, return policy, and total price, and compare at least one alternative. If no checkable evidence exists and the purchase matters, waiting or choosing a better documented alternative is usually the safer choice.

Sources & references

• Stanford Encyclopedia of Philosophy, "Aristotle's Rhetoric" (three means of persuasion through the character of the speaker, the emotional state of the listener, and the argument itself; speaker credibility through practical intelligence, virtuous character, and goodwill; credibility built by what the speaker says in the speech). Opened and read 4 Nov 2026 at https://plato.stanford.edu/entries/aristotle-rhetoric/
• United States Federal Trade Commission, "Advertisement Endorsements" (endorsements must be truthful and not misleading; endorsers should not describe experiences they have not had or make claims requiring proof they do not have; a connection between endorser and marketer that would affect how people judge the endorsement should be disclosed; the Endorsement Guides are guidelines, not regulations, but the FTC may investigate unfair or deceptive practices under the FTC Act; Guides revised June 2023). Opened and read 4 Nov 2026 at https://www.ftc.gov/news-events/topics/truth-advertising/advertisement-endorsements
• SERP record: literal search of "ethos examples in ads" on 4 Nov 2026 returned explainers led by Shopify, Zapier, WordStream, StudioBinder, and FilmDaft, all defining ethos as credibility or trust and listing celebrity endorsement, expert endorsement, testimonials, reviews, awards, and social proof among the examples, mostly organized as definition followed by an example list. This article differentiates itself by grounding the definition in Aristotle's three credibility qualities, by separating borrowed, built, and shown credibility, by covering trust signals, values appeals, and format differences alongside the familiar endorsement types, and by giving readers a five question method plus invented practice ads instead of only a list of named campaigns.