The book is an introduction to the philosophy of mind. While a number of such introductions are available, this book differs from others in that, while rejecting the dualist approach associated in particular with Descartes, it also casts serious doubt on the forms of materialism that now dominate English language philosophy. Drawing in particular on the work of Wittgenstein, a central place is given to the importance of the notion of a human being in our thought about ourselves and others.