Book excerpt: Richard Appignanesi goes on a personal quest of Existentialism in its original state. He begins with Camus' question of suicide: 'Must life have a meaning to be lived?' Is absurdity at the heart of Existentialism? Or is Sartre right: is Existentialism 'the least scandalous, most technically austere' of all teachings? This brilliant Graphic Guide explores Existentialism in a unique comic book-style.