Rebel Ideas examines the power of 'cognitive diversity' - the ability to think differently about the world around us. It explains how to harness our unique perspectives, pool our collective intelligence and tackle the greatest challenges of our age - from climate change to terrorism. It draws on a dazzling range of case studies, including the catastrophic failings of the CIA before 9/11, a fatal communication breakdown on top of Mount Everest and a moving tale of de-radicalisation in America's Deep South. Rebel Ideas will strengthen any team or organisation, but has dozens of personal applications, from the art of personal reinvention to the remarkable benefits of personalised nutrition. It shows us how to become more creative, how to collaborate in a world becoming more interconnected, and how to break free of the echo chambers that surround us all.