Byron Sharp Books
Byron Sharp is a Professor of Marketing Science and Director of the Ehrenberg-Bass Institute at the University of South Australia. His research focuses on empirical laws of marketing and buyer behavior, and he is recognized internationally for advancing evidence-based marketing practices.
Known for: How Brands Grow: What Marketers Don't Know
Books by Byron Sharp
How Brands Grow: What Marketers Don't Know
Most marketing advice sounds persuasive, but Byron Sharp asks a harder question: what does the evidence actually show? In How Brands Grow: What Marketers Don't Know, he challenges many of the ideas that dominate boardrooms, agencies, and brand plans, from the obsession with loyalty and differentiation to the belief that tightly targeted marketing is always best. Drawing on decades of empirical research, much of it associated with the Ehrenberg-Bass Institute, Sharp argues that brand growth is far more predictable than marketers assume. Brands typically grow by increasing penetration, reaching more category buyers, and building both mental and physical availability, not by cultivating a tiny group of devoted fans. That makes this book important because it replaces fashionable theory with practical laws of buyer behavior. For marketers, founders, product leaders, and anyone responsible for growth, Sharp offers a disciplined framework for deciding where to invest attention and budget. Whether you agree with every conclusion or not, this is one of the most influential and clarifying books in modern marketing because it forces strategy to confront reality.
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Small Brands Suffer Double Jeopardy
One of marketing’s most uncomfortable truths is that small brands usually do not merely have fewer customers; they also have slightly less loyal customers. Sharp highlights this as the Law of Double Jeopardy, an empirical pattern that appears again and again across categories. In practical terms, br...
From How Brands Grow: What Marketers Don't Know
Growth Comes From More Buyers
A brand rarely grows because existing customers suddenly become dramatically more loyal; it grows because more people buy it. Sharp’s emphasis on market penetration is one of the book’s central and most practical lessons. Penetration means the proportion of category buyers who purchase your brand in...
From How Brands Grow: What Marketers Don't Know
Buyers Are Less Loyal Than You Think
Marketers often imagine customers as devoted followers who consciously choose among brands based on strong preferences. Sharp shows a messier reality: buyers are often light, inconsistent, and only weakly attached. They switch between brands regularly, especially in repertoire categories where peopl...
From How Brands Grow: What Marketers Don't Know
Be Easy To Notice And Buy
If growth depends on acquiring many buyers, then the next question is obvious: how do brands make that easier? Sharp’s answer is through mental and physical availability. Mental availability is the likelihood that a buyer will notice or think of your brand in buying situations. Physical availability...
From How Brands Grow: What Marketers Don't Know
Distinctive Assets Beat Abstract Differentiation
Many marketers chase differentiation as if growth depends on being perceived as uniquely superior. Sharp argues that in many categories, meaningful differentiation is limited and often overstated. What matters more in everyday competition is distinctiveness: the brand’s ability to be quickly recogni...
From How Brands Grow: What Marketers Don't Know
Advertising Refreshes Memory, Not Just Persuasion
A common view of advertising is that it persuades consumers through argument, emotion, or information. Sharp does not deny that communication can influence beliefs, but he places heavier weight on a simpler and often more reliable function: advertising keeps the brand mentally available. It refreshe...
From How Brands Grow: What Marketers Don't Know
About Byron Sharp
Byron Sharp is a Professor of Marketing Science and Director of the Ehrenberg-Bass Institute at the University of South Australia. His research focuses on empirical laws of marketing and buyer behavior, and he is recognized internationally for advancing evidence-based marketing practices.
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Byron Sharp is a Professor of Marketing Science and Director of the Ehrenberg-Bass Institute at the University of South Australia. His research focuses on empirical laws of marketing and buyer behavior, and he is recognized internationally for advancing evidence-based marketing practices.
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