Everyone accepts the importance of physical health: isn't it just as important to aim for the mental equivalent? There is no simple set of instructions that can guarantee sanity, but if you want to overcome emotional difficulties and become happier, psychotherapist Philippa Perry argues that there are four cornerstones to sanity you can influence to bring about change. By developing your self-observation skills, examining how you relate to others, breaking out of your comfort zone and exploring new ways of defining yourself, she demonstrates that it is possible to become a little less tortured and a little more fulfilled. This book is at once a brilliant explanation of our minds and a profoundly useful guide to facing up to the many challenges life throws our way. We need self-help books like never before, and that is why The School of Life, in conjunction with Pan Macmillan, has launched a series of new guides for everyday living: six intelligent, rigorous, well-written self-help books, put together by some of the leading minds in the field. In these, we systematically examine some of the great issues of life - work, sex, money, emotional maturity, digital life and changing the world. Other titles of the same series include: - How to worry lees about money - How to change the world