We make thousands of decisions every day, from minute choices we don't even know we're making up to agonising deliberations. But when every decision we make is life-changing, the way we reach them matters. For every decision, there is noise. This book teaches us how to understand all the extraneous factors that impact and bias our decision-making - and how to combat them and improve our thinking. From the bestselling author of "Thinking Fast and Slow" and the co-author of the bestseller "Nudge".