Why is a £100 shirt marked down to £60 worth more than the same shirt originally priced at £60?

How does using credit cards influence how much money we spend?

Does pre-paying for a holiday make it seem better value?

World-renowned economist and New York Times bestselling author Dan Ariely and financial writer and comedian Jeff Kreisler answer these questions and more, exposing our hidden motivations driving our (often misguided and expensive) decisions around money.

Fascinating, engaging, funny and essential, Small Change is a sound investment, providing the tools you need to improve your financial choices, spend smarter and save better.

Dan Ariely, author of Predictably Irrational and Small Change, is the James B. Duke Professor of Psychology and Behavioral Economics at Duke University, and is the founder of the Center for Advanced Hindsight. His work has been featured in the New York Times, Wall Street Journal, Washington Post, Boston Globe, and elsewhere. He lives in North Carolina with his family.

Jeff Kreisler is an award-winning comedian and writer who writes for Comedy Central's InDecision 2008 and maintains a syndicated business humour column on Jim Cramer's website TheStreet. In addition to writing, he performs his stand-up comedy around the country. He lives in New York, NY.