"On the Edge of the Future: Esalen and the Evolution of American Culture" by Robert C. Fuller is a textbook in the "Religion in North America Ser." published by Indiana University Press in 2005. The book explores the impact of Esalen on American culture, specifically focusing on the intersection of body, mind, and spirit in religious practices. With 344 pages, this trade paperback delves into the role of religion in shaping society and individual consciousness in North America.