The Small Big: Small Changes That Spark Big Influence book cover

The Small Big

Small Changes That Spark Big Influence

Robert B. Cialdini & Steve Martin & Noah Goldstein
3.78(1205 Reviews)

Overview of The Small Big

In "The Small Big," persuasion masters Cialdini, Goldstein, and Martin reveal how tiny changes trigger massive influence. Why did a simple letter tweak save a government millions? Endorsed by Dan Pink as "highly practical," discover the science-backed micro-adjustments that transform ordinary requests into irresistible propositions.

Key Themes in The Small Big

  • behavioral economics
  • social proof
  • persuasion techniques
  • contextual framing
  • choice architecture

Quotes from The Small Big

  • Going against the crowd is emotionally distressing and even physically painful.

  • What's fascinating is how blind we are to social proof's influence on us.

  • Messages aligned with recipients' specific social identities are significantly more powerful.

  • People are motivated both to conform to social norms and to define themselves as unique individuals.

  • Small changes in context can create enormous differences in outcomes.

Characters in The Small Big

  • Robert B. CialdiniCo-author and expert in behavioral economics
  • Steve MartinCo-author and behavioral science practitioner
  • Noah GoldsteinCo-author and researcher of persuasion
  • Hart BlantonPsychologist who studied social norm deviation

About the Author

About the Author of The Small Big

Robert B. Cialdini, Steve Martin, and Noah Goldstein are the authors of The Small BIG and leading experts in behavioral science, persuasion, and ethical influence strategies.

Cialdini, a Regents’ Professor Emeritus of Psychology and Marketing at Arizona State University, pioneered the foundational research on persuasion principles outlined in his seminal bestseller Influence: The Psychology of Persuasion, which has sold over 5 million copies and been translated into 41 languages.

Martin and Goldstein, seasoned researchers and consultants, have collaborated with Cialdini to translate psychological insights into actionable business practices. Their work in The Small BIG focuses on leveraging subtle behavioral adjustments to drive disproportionate impact across leadership, marketing, and decision-making.

Cialdini’s expertise has earned him the title “Godfather of Influence,” with his principles adopted by Fortune 500 companies and academic institutions worldwide. His other works, including Pre-Suasion and Yes! 50 Scientifically Proven Ways to Be Persuasive, further explore the science of effective communication. The Small BIG was named a Times Book of the Year, praised for distilling complex psychology into practical tools. Collectively, their research-backed frameworks continue to shape modern approaches to organizational behavior and social dynamics.

Download Summary of The Small Big

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"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum
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"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC
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"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

@Chloe, Solo founder, LA
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117

"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

@Raaaaaachelw
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"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum
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108

"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC
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254
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17

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore
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"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

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"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

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483

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