This book, which was required for an introduction to graduate studies course I recently took, is nothing more than a specialized, and random, encyclopedia. The other reviews hail this volume as a "comprehensive resource" for multiple areas of study. The problem is, the definitions of each term are too broad to be useful to specialists and too random and/or inaccessible for people merely interested in these topics. Most of the terms are all so unrelated that I just don't see the point of owning this book. If you need a definition for "globalism" and "materialism," buying this book would be useless. There are plenty of free resources online which also define such terms, and often more comprehensively than this broad overview.
I can see why such a volume was viable when it was first printed in the 70's, but why it was reprinted in 2005 is beyond me. This seems to be an intellectual artifact with very little use in the 21st century.