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Influence (Collins Business Essentials)

An experimental social psychologist reveals the six universal psychological principles that drive automatic human compliance and shows how to recognize and defend against their exploitation.

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What it’s about

Influence: The Psychology of Persuasion distills decades of laboratory research and three years of undercover fieldwork among salespeople, fundraisers, advertisers, and con artists into a single, compelling framework of six 'weapons of influence': reciprocation, commitment and consistency, social proof, liking, authority, and scarcity. Robert Cialdini explains why people so often say 'yes' automatically—because the accelerating pace and information overload of modern life force us to rely on mental shortcuts that, while usually reliable, can be triggered fraudulently by compliance professionals. Each principle is examined for its function in society, its exploitability, and the practical defenses readers can use to protect themselves. Blending rigorous science with vivid, often humorous real-world stories, the book is at once an authoritative scientific account and an indispensable practical guide for anyone who wants to understand—and resist—the hidden forces that shape everyday decisions.

The through-line

Who it’s for: An ordinary person who wants to make good decisions and avoid being manipulated into saying yes to requests they would otherwise refuse.
The problem: Compliance professionals—salespeople, fundraisers, advertisers, con artists—use systematic psychological tactics to extract agreement and money. The reader feels like a 'patsy' or sucker, vulnerable and confused about why they comply against their own interests.
The plan: Learn the six universal principles that drive automatic compliance.
Understand how each principle normally serves you and why it can be exploited.
Become sensitive to the internal signals (e.g., undue liking, emotional arousal, stomach tightening) that flag a tactic in use.
Apply specific defenses: redefine favors as sales devices, ask whether an authority is a relevant expert, distinguish possessing from using a scarce item.
Retaliate against those who falsify the triggers of your shortcut responses.
The payoff: You make compliance decisions based on the true merits of the request rather than on manipulated triggers. · You retain the efficiency of useful mental shortcuts while spotting counterfeit signals. · You feel empowered rather than victimized in social and commercial exchanges.

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Explorations in Personality · H. A. Murray, et al.
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Social Interest · Alfred Adler
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Wisdom of the Body · W. B. Cannon
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The Fearless Organization · Amy Edmondson
Provides the foundational research and practical steps for creating psychological safety, which the book identifies as crucial for reducing interpersonal anxiety and encouraging people to speak up.
Mindset · Carol Dweck
Explains the difference between a 'growth mindset' and a 'fixed mindset,' which is presented as a key tool for helping employees manage perfectionism and see failures as learning opportunities.
Crucial Conversations · Kerry Patterson, Joseph Grenny, et al.
Recommended as a resource for employees to learn how to navigate difficult, high-stakes conversations, directly addressing the book's theme of moving from conflict avoidance to healthy debate.
Better Allies · Karen Catlin
The author is quoted on specific, actionable steps for allyship, making her book a practical guide for implementing the principles in Chapter 7.
Blindspot: Hidden Biases of Good People · Mahzarin R. Banaji and Anthony G. Greenwald
Explains the science of implicit bias, which is central to the book's argument that leaders need to be proactive allies because 'not being racist/sexist' isn't enough.