Gay Hendricks is an American psychologist, writer, and teacher specializing in personal growth, relationships, and body intelligence. He received his Ph.D. in counseling psychology from Stanford University and spent 21 years as a professor at the University of Colorado, where he became a full professor in the Counseling Psychology Department. Throughout his career, Dr. Hendricks has coached over eight hundred executives from major companies such as Dell, Hewlett-Packard, and Motorola. He is the founder of the Hendricks Institute, which offers seminars across North America, Asia, and Europe.

Alongside his wife, Dr. Kathlyn Hendricks, he has coauthored more than 35 books, including notable titles such as 'Conscious Loving,' 'The Corporate Mystic,' and the New York Times bestseller 'Five Wishes.' In addition to his work in psychology and relationships, Dr. Hendricks has ventured into writing mystery novels featuring the character Tenzing Norbu, with titles including 'The First Rule of Ten' and 'The Second Rule of Ten.' His contributions to the fields of relationship transformation and body-mind therapies have made him a prominent figure in personal development.