Here, Amy Edmondson - the world's most influential organisational psychologist - reveals how we get failure wrong, and how to get it right. She draws on a lifetime's research into the science of 'psychological safety' to show that the most successful cultures are those in which you can fail openly, without your mistakes being held against you. She introduces the three archetypes of failure - simple, complex and intelligent - and explains how to harness the revolutionary potential of the good ones (and eliminate the bad).