The British Constitution is accepted, in England at least, as the symbol for soundness and reliability: and yet its unwritten mysteries and its practical resilience are the despair of theorists. It is as unexpected as a person, and seems to be defined only by the fact that it lives and works. This 1966 book, then, might be described as a biography by one who has a first-hand knowledge of his subject. It offers ordinary British citizens a reasonable and detached introduction to the system in which they play so large a part; at the same time it provides, for friends and critics overseas, a simple and reliable account of its growth and functioning.