BRUCE & STAN'S GUIDE TO CULTS, RELIGIONS, AND SPIRITUAL BELIEFS
by Bruce Bickel and Stan Jantz
Comments: great book; Bruce and Stan have a very easy style, yet they do not leave out the tough concepts--they explain them. The book covers one-God religions, blended beliefs, philosophical religions, and no god beliefs. Their presentation is fair and thorough, and they suggest additional resources in each chapter. You can get more info on their website.