Instruct: Classify a review into positive or negative sentiment.
Query: An extremely perceptive and well written book

Horowitz has written an extremely perceptive, well written andsometimes introspective autobiography. The book's candid explanationof the psychological roots of first communism and then the New Left are very enlightening. As a student at Cal Berkeley myself in the late sixties (although I was not a radical, one couldn't help but be affected by the swirl of events), the chapters on Horowitz' experiences with and ultimately rejection of the New Left were particularly poignant for me. Horowitz is not only insightful about politics and his own life, he has an excellent command of the English language. I just couldn't put this book down.