'Beware who you give this book to.' Financial Times 'I recommend that you keep this delightful essay at your side.' Observer 'Dryly witty essay' Alain de Botton, Sunday Telegraph We all sit through meetings with that one person who seems to be able to persuade everyone. What is their secret? Are they more gifted than we are? Or is it just that they are very skilled in the art of persuation? That i...