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Robert B. Cialdini, PhD is an award-winning behavioral scientist and author.  He is the president and CEO of Influence at Work, focusing on live and virtual keynotes, streaming and online corporate training.

In acknowledgement of his outstanding research achievements and contributions in behavioral science, Dr. Cialdini was elected to the American Academy of Arts & Sciences and the National Academy of Sciences. He has over 230 professional and scientific publications. Robert Cialdini is Regents' Professor Emeritus of Psychology and Marketing at Arizona State University.

Dr. Cialdini is known as the foundational expert in the science of influence and how to apply it ethically in business and elsewhere, and his Principles of Persuasion have become the cornerstone for any organization serious about increasing their effectiveness in sales, leadership, marketing, management and communication. He is a three-time New York Times bestselling author, with more than 5 million copies sold throughout the world. He is frequently referred to as the “Godfather of Influence.”

De la contraportada

Influence, the classic book on persuasion, explains the psychology of why people say "yes"'and how to apply these understandings. Dr. Robert Cialdini is the seminal expert in the rapidly expanding field of influence and persuasion. His thirty-five years of rigorous, evidence-based research along with a three-year program of study on what moves people to change behavior has resulted in this highly acclaimed book.

You'll learn the six universal principles, how to use them to become a skilled persuader'and how to defend yourself against them. Perfect for people in all walks of life, the principles of Influence will move you toward profound personal change and act as a driving force for your success.

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Influence

HarperCollins Publishers

Chapter One

One of the reasons reciprocation can be used so effectively as a device for gaining another's compliance is its power. The rule possesses awesome strength, often producing a "yes" response to a request that, except for an existing feeling of indebtedness, would have surely been refused. Some evidence of how the rule's force can overpower the influence of other factors that normally determine whether a request will be complied with can be seen in a second result of the Regan study, Besides his interest in the impact of the reciprocate rule on compliance Regan was also interested in how liking for person affects the tendency to comply with that person's request. To measure how liking toward how affected the subjects' decisions to buy his raffle tickets, Regan had them fill out several rating scales indicating how much they liked Joe. He then compared their liking responses with the number of tickets they had purchased from Joe. There was significant tendency for subjects to by more raffle tickets from Hoe the more they liked him. But this alone is hardly a startling finding. Most of us would have guessed that people are more willing to do a favor for someone they like.

The interesting thing about the Regan experiment, however, is that the relationship between liking and compliance was completely wiped out in the condition under which subjects had been given a Coke by Joe. For those who owed him a favor, it made no difference whether they liked him or not; they felt a sense of obligation to repay him, and they did. The subjects in that condition who indicated that they disliked Joe bought just as many of his tickets as did those who indicated that they liked him. The rule for reciprocity was so strong that it simply overwhelmed the influence of a factor—liking for the requester—that normally affects the decision to comply.

Excerpted from Influenceby Robert B. Cialdini Copyright ©2007 by Robert B. Cialdini. Excerpted by permission.
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