'A breakthrough book. Wonderfully applicable to everything in life, and funny as hell.' Nassim Nicholas Taleb Why is Red Bull so popular - even though everyone hates the taste? Why do countdown boards on platforms take away the pain of train delays? Discover the alchemy behind original thinking, as TED Talk superstar and Ogilvy advertising legend Rory Sutherland reveals why abandoning logic and casting aside rationality is the best way to solve any problem. In his first book he blends cutting-edge behavioural science, jaw-dropping stories and a touch of branding magic on his mission to turn us all into idea alchemists. To be brilliant, you have to be irrational.