"There will be no book like this for some time to come. It should be on the reading list of any student of religion and brings into the foreground a needed agenda for those in the humanities and social sciences, and will be valued by all those who appreciate fine, clear writing. I wish I had written it myself." - Antoine Faivre, École Pratique des Hautes Études, Sorbonne
"Finally, someone has mastered the vast literature of, and reality which is the New Age movement, and produced a comprehensive and authoritative survey of its major themes and most important leaders. Hanegraaff's effort should immediately become the foundation upon which future research of the movement will be constructed." - J. Gordon Melton, Institute for the Study of American Religion, Santa Barbara
"This is the best critical study of New Age thinking hitherto available. An outstanding achievement." - Garry W. Trompf, School of Studies in Religion, University of Sydney