The world we live in is increasingly complex. It throws up complex problems. This book is about tackling them. At ThinkPlace, we've pioneered the application of design thinking to complex challenges like climate change, family violence and global malnutrition. We work globally with governments, organisations and communities using a methodology - the Design System (TM) outlined in this book - that has been developed over more than a decade. We bring together different voices and help them to create better futures. If you're one of those voices, or would like to be, this book is for you. It's part roadmap, part instruction manual, but mostly it's a clarion call for a new way of doing things: tackling the world's biggest problems in a way that brings people together and produces positive, lasting change.