Predictably Irrational: The Hidden Forces That Shape Our Decisions Ariely, Dan Summary Why do smart people make irrational decisions every day? Why do smart people make irrational decisions every day? The answers will surprise you. Predictably Irrational is an intriguing, witty and utterly original look at why we all make illogical decisions. Highlights Easy to enjoy: 353 pages · Paperback By Ariely, Dan Details ISBN: 9780007256532 Author: Ariely, Dan Format: Paperback Pages: 353 Language: English Publication date: 1 June 2009 Condition: Used – Good About the authors Ariely, Dan and Dan Ariely · Publisher: HarperCollins UK More about this book Reviews Cuts to the heart of our strange behaviour, demonstrating how irrationality often supplants rational thought and that the reason for this is embedded in the very structure of our minds.