Advertising has a peculiar relationship with certainty. Every few years, somebody announces that they have finally worked out how it works. First, advertising was salesmanship in print. Then it was about finding a unique proposition and hammering it into people’s heads. Then it was subconscious persuasion. Then emotional engagement. Then differentiation. Then salience.

Then distinctive assets, behavioural science, performance marketing, attention metrics and whatever somebody managed to persuade the Cannes audience was revolutionary last Tuesday afternoon.

Each new school arrives with the confidence of a detective entering the drawing room.

The mystery has been solved. Everyone who came before us was mistaken. Here is the murderer, here is the weapon and here is a proprietary diagram explaining the whole thing.

Paul Feldwick’s The Anatomy of Humbug begins from a rather more unsettling possibility: What if advertising does not work in one way? What if most of the competing theories are useful?

And what if they become dangerous precisely when we start treating one of them as the truth?

Published in 2015, The Anatomy of Humbug: How to Think Differently About Advertising is not a conventional advertising manual. It does not offer a formula for writing headlines, building brand platforms or creating viral content. It does something more valuable.

It excavates the assumptions beneath the industry.

Feldwick approaches advertising thought almost like an archaeologist, uncovering layers of theory that have accumulated over more than a century. Some have been abandoned. Others remain buried inside the words marketers use every day: proposition, message, benefit, reason why, awareness, persuasion and recall.

The result is one of the most thoughtful books ever written about advertising—and one of the least likely to be found being theatrically waved around by somebody promising to transform your funnel.

The man behind the humbug

Feldwick was well placed to examine the subject.

He spent around 30 years at BMP, later part of DDB, serving as head of planning before becoming DDB Worldwide’s global brand planning director. He also chaired both the Account Planning Group and the Association for Qualitative Research and served as convenor of judges for the IPA Effectiveness Awards. In other words, he did not arrive at his conclusions after watching three YouTube videos about neuromarketing.

The book grew from a contradiction he had observed throughout his career.

Agencies claimed advertising worked by securing attention and communicating a clear, rational and memorable message about a product. Teams would agonise over the single-minded proposition, the reason to believe and the precise piece of information that needed to be deposited into the consumer’s mind.

Then they would produce advertising involving singing polar bears, laughing aliens, drumming gorillas or comic characters behaving in ways that had very little to do with a rational product argument.

Even more troublingly, those were often the campaigns that worked best.

Looking back ten years after the book’s publication, Feldwick wrote that the theories agencies professed to believe frequently fitted badly with both the advertising they made and the advertising they increasingly knew was effective.

That gap—between the industry’s official explanation and its actual behaviour—is the territory of The Anatomy of Humbug.

Why call it humbug?

The title sounds as though Feldwick intends to expose advertising as a fraud.

There is some of that in it. “Humbug” has long carried the meaning of nonsense, deception or exaggerated claims. Feldwick has compared its historical force with a rather stronger modern expression involving a bull.

But the word also belongs to the world of P. T. Barnum.

Barnum used humbug to describe the publicity, spectacle and theatrical exaggeration through which he attracted enormous audiences. It was not always a literal statement of fact. It was an invitation to look.

Barnum understood that public attention could be created through curiosity, provocation, performance and entertainment. His world of extravagant exhibits and heavily embroidered claims feels surprisingly close to dancing ponies, singing cats and an action star doing the splits between two moving lorries.

This alternative tradition matters because advertising has spent much of its history trying to distance itself from the barker outside the tent.

It has wanted to become respectable.

Scientific.

Measurable.

A disciplined business function rather than an unruly form of popular entertainment.

Feldwick does not suggest that advertising should simply lie more enthusiastically. He asks whether, in its pursuit of intellectual respectability, the industry has suppressed an essential part of its nature.

Advertising does not only inform.

It performs.

It decorates public life, invents characters, creates rituals, starts conversations and sometimes becomes part of the culture it is attempting to influence.

That is humbug—not necessarily deception, but showmanship.

Six stories about how advertising works

The core of the book is organised around six broad ways of understanding advertising:

Salesmanship.
Seduction.
Salience.
Social connection.
Spin.
Showmanship.

Feldwick’s achievement is not inventing six new laws. It is showing how different traditions developed, why they became influential and where each one becomes inadequate.

Salesmanship

Salesmanship is perhaps the most persistent theory of all.

The consumer has a need. The advertiser presents information or an argument. The consumer pays attention, understands the claim, believes it and is persuaded to act.

This is the tradition associated with advertising as “salesmanship in print”, with Claude Hopkins’ scientific advertising, Rosser Reeves’ Unique Selling Proposition and the continuing obsession with propositions, messages, benefits and reasons why.

It remains embedded in the briefing process.

What is the one thing we want people to take away?

What do we want them to think?

What message must we land?

The model can be useful. Some advertising genuinely does need to explain a product, communicate an offer or provide a convincing reason to buy. Search advertising, retail promotion and direct response would be difficult to understand without it.

The problem begins when salesmanship is treated as a universal theory.

People do not always give advertising their conscious attention. They rarely study competing claims with the concentration of a High Court judge. Many successful ads do not present a verbal argument at all.

A gorilla playing the drums did not explain Cadbury Dairy Milk.

Yet it contributed to a dramatic recovery for the brand.

The salesmanship theory can account for an ad that says, “Here are three reasons to choose us.” It struggles with an ad that makes millions of people feel strangely happy when they hear the opening bars of In the Air Tonight.

Seduction

Where salesmanship addresses the conscious, rational mind, seduction works beneath it.

Advertising forms emotional associations. It connects products with desire, security, status, belonging, sexuality, nostalgia or fear. The audience may not be able to articulate the process because the work does not depend upon a consciously understood argument.

Feldwick traces this tradition through psychoanalysis, motivation research and the long fascination with hidden persuaders. The language has evolved—today we are more likely to hear about System 1, implicit response or behavioural science—but the central belief is familiar.

Consumers do not necessarily know why they want what they want.

Advertising can influence desire without requesting permission from the rational mind.

Again, the idea is useful. Emotional response is plainly important. But taken too literally, seduction turns advertising into a sinister form of mind control and consumers into defenceless puppets.

People are influenced by advertising, but they also interpret it, ignore it, mock it and use it for their own social purposes. We are neither perfectly rational shoppers nor helpless collections of subconscious buttons waiting to be pressed.

Salience

Salience provides a less dramatic explanation.

Advertising may work simply by making a brand easier to notice and remember.

It keeps the brand mentally available. It refreshes existing memory structures, increases familiarity and raises the chance that the name will come to mind when somebody enters the category.

The advertisement does not have to change a deeply held belief.

It may only need to make the brand famous.

This way of thinking has become substantially more prominent since the publication of Byron Sharp’s How Brands Grow. Feldwick observed in 2026 that the related ideas of publicity and mental availability are now familiar across much of marketing, while advertising research has moved away from an overwhelming preoccupation with message recall.

Salience explains why an entertaining ad with no conventional sales argument can still be commercially powerful.

You enjoyed it.

You knew who it was for.

You remembered the brand.

That may be enough.

But salience also becomes reductive when treated as the only answer. Brands are not merely names floating at different heights in memory. They carry meaning. They participate in culture. People use them to express identity, relationships and social position.

Which brings us to another of Feldwick’s models.

Social connection

Advertising is not always a private message sent from a brand to an isolated buyer.

It can be a public act.

People discuss ads, repeat lines from them and use them as shared cultural reference points. Advertising signals that a brand is established, popular and socially present. It can help create communities around products and provide raw material for conversations between consumers.

Think about the advertising phrases that entered everyday speech.

“Should’ve gone to Specsavers.”

“Compare the meerkat.”

“Wassup?”

People did not merely receive these as commercial propositions. They played with them.

Advertising became part of their social language.

This model feels particularly relevant now. Social platforms have made the public’s response visible, but the behaviour itself is not new. People have always appropriated advertising—quoting it, parodying it, complaining about it and occasionally loving it more than the product deserves.

Spin

Spin treats advertising as a form of framing.

It does not necessarily persuade through evidence or implant an unconscious association. It chooses how the product, organisation or issue will be presented.

Every communication highlights some realities and obscures others. Calling a used car “pre-owned” does not change its mileage, but it changes the frame around it. Positioning an airline as democratic freedom rather than uncomfortable low-cost transport reorganises the meaning of the same physical experience.

Spin has uncomfortable associations because it can slide into manipulation. But framing is unavoidable.

Even the most factual advertisement must decide which facts to include, which order to put them in and what language to use.

There is no completely neutral version.

Showmanship

Finally, showmanship returns us to Barnum.

Advertising attracts attention by being entertaining, surprising, funny, beautiful, dramatic or gloriously excessive. It creates an experience people value independently of the selling message.

This was arguably the most provocative part of Feldwick’s thinking when the book appeared. It challenged the assumption that entertainment was merely decorative packaging used to smuggle a proposition past the audience’s defences.

Perhaps the entertainment is not the wrapping.

Perhaps it is part of how the advertising works.

Feldwick has since developed this idea further in Why Does the Pedlar Sing?, and he notes that showmanship has become much more widely accepted within advertising thinking.

The audience gives the brand attention because the brand gives the audience something worth attending to.

That sounds obvious.

Advertising has nevertheless spent decades trying to prove it can avoid doing it.

The danger of the single answer

The great lesson of The Anatomy of Humbug is not that showmanship defeats salesmanship or that emotion defeats reason.

It is that the argument has been framed incorrectly.

Advertising can provide useful information.

It can create emotional associations.

It can increase fame and mental availability.

It can become socially shared.

It can frame how we understand a product.

It can entertain.

A single advertisement may do several of these things simultaneously.

The publisher summarises Feldwick’s position neatly: theories of advertising “all have their uses” and become dangerous when treated too literally as truth.

That is less satisfying than a universal formula.

It is also more intelligent.

Certainty sells books, speeches, consultancy models and research products. “Here is the answer” is easier to market than “the answer depends upon the circumstances, the category, the audience, the medium and what you are trying to achieve.”

But the latter is closer to reality.

Feldwick also makes a more political point: theories are not innocent.

A theory built around psychological insight increases the authority of the planner. A theory built around message recall empowers researchers and clients. A theory based on intuition and aesthetic judgement gives greater influence to creative people.

How we claim advertising works helps determine who gets to control it.

That may explain why arguments about methodology become so heated. Participants are not only defending ideas.

They are defending their role in the room.

Why it still matters

The book is now more than a decade old, but its argument may be more relevant than when it appeared.

Digital marketing brought extraordinary new capabilities. It also brought a renewed outbreak of false certainty.

Because something can be counted, we assume it is the thing that counts.

Clicks, impressions, completion rates and attributed conversions provide useful information, but they can quietly recreate the salesmanship model: an advertisement delivers a message, triggers an action and produces an observable response.

Everything outside that chain becomes harder to value.

Fame.

Affection.

Cultural presence.

The long accumulation of familiarity.

The joke somebody repeats to a colleague.

The brand that enters a buyer’s mind six months after the exposure that supposedly caused nothing.

The industry then discovers that short-term metrics encourage short-term work and announces, once again, that it has uncovered an entirely new truth.

Feldwick’s historical perspective punctures that vanity.

The debates we describe as unprecedented are frequently old disputes wearing new lanyards.

Brand versus performance.

Rational versus emotional.

Information versus entertainment.

Creativity versus effectiveness.

Advertising has been circling these questions for generations. The technologies change. The underlying arguments prove remarkably difficult to kill.

Reviewers repeatedly identify this historical grounding as one of the book’s greatest strengths. The Marketing Society compared Feldwick’s approach to archaeology, revealing the accumulated layers of theory without declaring one layer the winner. An APG review praised the way it exposes the origins of concepts practitioners still use automatically. Reader reviews similarly describe the book as valuable because it reveals how supposedly modern assumptions may have been inherited from theories developed a century ago.

John Fanning, reviewing the book in 2015, called it essential partly because understanding how debates about advertising evolved leaves practitioners better equipped to face what comes next.

That may be its most enduring contribution.

It does not tell us what to think.

It teaches us to notice how we are thinking.

The best book you may never have read

The Anatomy of Humbug is unlikely to give you a clever technique to try in tomorrow morning’s concepting session.

It may do something more useful.

It may make you suspicious when somebody insists an ad must communicate one explicit message.

It may make you question research that evaluates every execution according to one preferred mechanism.

It may help you recognise that a piece of entertaining work is not automatically strategically empty, just as a rational argument is not automatically dull.

Most importantly, it may stop you mistaking a model for reality.

Models are useful because they simplify.

Advertising is fascinating because it refuses to remain simple.

It is commerce and culture.

Argument and emotion.

Repetition and novelty.

Information and entertainment.

Salesmanship and showmanship.

It can whisper into the subconscious, shout from a billboard, turn a brand into a household name or give two strangers something to laugh about.

That messiness is not a problem Feldwick intends to solve.

It is the point.

The anatomy of advertising turns out to be an anatomy of contradictions.

And the humbug begins whenever somebody claims there is only one way it works.