Guinness is undoubtedly a perceptive cultural critic, but this book offered more than it delivered. Guinness begins with a concise and lucid history of humanism and then attempts to trace: (1) the roots of the sixties movement in the decline of humanism; and (2) the impact of the sixties counterculture on today's society. He draws solid conclusions, to be sure, but the depth of his analysis seems wanting. His conclusions are often vaguely stated, with little or no explanation. If you wish to gain a good knowledge of the intellectual roots of the sixties rather than simply a recapitulation of events, this book is valuable. However, in terms of penetrating analysis, Guinness, uncharacteristically, falls a bit short.