This new edition has just been published.  The following review is from the publisher’s web page for the book: “The best available introduction to a fascinating subject. This new edition expands the geographical coverage to Asia, Africa, and Latin America, with new material on apocalyptic movements, Eastern Christianity, and the historical development of spiritual practices. No one can match Sheldrake for a winning combination of accuracy, comprehensiveness, and lively writing.” Arthur Holder, Graduate Theological Union