Described by the publisher as "an Internet specialist who studied the psychology of religion," Visser more than adequately acquits himself in expounding the thinking of Ken Wilber-the popular "guru of transpersonal psychology." This relatively new field of study considers the whole gamut of human endeavors that can lead to self-actualization, including consciousness studies, mind-body relationships, and spiritual inquiries, among others. Wilber's especial concern in this field is spiritual; his many published works are all oriented to showing how contemporary thinking (especially the scientific) is materialistic and also mistaken in devaluing the ultimately more important subjective, spiritual elements of human existence. He has developed an elaborate system based on Eastern mystical experiences (he meditates regularly, we are told) and ideas that Visser clearly finds compelling. It is clear that Wilber considers himself a pioneering "philosopher," but contemporary academic philosophy would insist that mystical revelations must, in the final analysis, be judged on the truth claims they make, and here it would find that Wilber had not adequately dealt with that aspect of his system. Public libraries would be the most logical and natural place for this book.-Leon H. Brody, U.S. Office of Personnel Management Lib., Washington, DC Copyright 2003 Reed Business Information.