John Tarrant, Roshi is Director and Senior Faculty for Pacific Zen Institute  and Senior Teacher for Desert Lotus Zen Sangha in Phoenix, AZ. He has a PhD in psychology and is the author of Bring Me The Rhinoceros & Other Zen Koans That Will Save Your Life and The Light Inside the Dark: Zen, Soul & the Spiritual Life. He also teaches at Integrative Medicine within Duke University Medical School. John’s life work is centered on the transformation of consciousness and he is one of the foremost koan teachers in the United States.

Videos of talks by John Tarrant �
Zenosaurus (blog)
Q&A blog on Shambhala Sunspace

John Tarrant on Wikipedia