Why do sensible people make irrational decisions every day? The answers will surprise you. Predictably Irrational can be an intriguing, witty and utterly original take a look at why most of us make illogical decisions.

Why may a 50p aspirin carry out what a 5p aspirin can’t? If an item is ‘free of charge’ it must be a bargain, right? Why is everything relative, even though it shouldn’t be? Just how do our expectations impact our actual views and decisions?

With this astounding reserve, behavioural economist Dan Ariely cuts towards the heart of our strange behaviour, demonstrating how irrationality often supplants rational thought and that the reason for this is embedded in the structure of our thoughts.

Predicatably Irrational brilliantly blends everyday experiences with a series of illuminating and often surprising experiments, that will change your understanding of human behaviour. And, by recognising these patterns, Ariely implies that we can make better decisions in business, in issues of collective welfare, and inside our everyday lives from drinking coffee to slimming down, investing in a car to selecting an enchanting partner.