Ed Rosenfeld is a writer, editor, and consultant based in New York. A founding editor of Omni magazine, he has edited three volumes on neural networks, as well as Talking Nets: AnOral History of Gestalt Therapy, and co-written the libretto to the opera Huxley's Last Trip. As many drugs became illegal, he wrote The Book of Highs, first published in 1973, to focus on ways to alter consciousness without drugs. Andrew Weil, M.D., is a world-renowned leader and pioneer in the field of integrative medicine, a healing-oriented approach to health care, which encompasses body, mind, and spirit. He holds undergraduate and medical degrees from Harvard University. Approximately 10 million of Dr. Weil's books have been sold, including The Natural Mind, Spontaneous Healing, 8 Weeks to Optimal Health, and Healthy Aging.