Written by Geoff Mulgan, a former head of policy for the UK prime minister, and advisor to governments round the world, this book is about how governments' strategies take shape, and how money, people, technology, and public commitment can be mobilized to achieve important goals. It considers the common mistakes made, and how these can be avoided. Good government takes the long-term seriously and there can be few people better qualified than Geoff Mulgan to show how this aspiration can become part of the day-to-day work of departments and agencies.