This book is not only an introduction to the entire Zondervan Guide to Cults and Religious Movement series, but also a quick-reference guide to the groups and movements discussed in the series. Truth and Error brings together in one volume the charts from the various guides that show how the groups and movements differ theologically from historic orthodox Christianity. Each chart is introduced by the general editor, Alan Gomes. The books in the series that do not have comparison charts are introduced and summarized.