THE INTERNATIONAL BESTSELLER: A radically new way of thinking about depression and anxiety'A book that could actually make us happy' SIMON AMSTELL'This amazing book will change your life' ELTON JOHN'One of the most important texts of recent years' BRITISH JOURNAL OF GENERAL PRACTICE 'Brilliant, stimulating, radical' MATT HAIG'The more people read this book, the better off the world will be' NAOMI ...