In this ground-breaking book, now translated into English for the first time, author Morten Munster presents a set of rules that individuals and companies can follow to bring about necessary change. Using behavioural design and an accessible four-step method, he shows how people can be persuaded to do one thing instead of another and thereby achieve success. By examining an array of examples drawn from business, government, various public groups and institutions he demonstrates how the rules can be learned and applied in different contexts.