Russ Harris is a physician, therapist, and speaker specializing in stress management. He travels internationally to train health professionals and ordinary people in the techniques of ACT. He is also the author of the original Happiness Trap, as well as six other books, including ACT with Love, The Reality Slap, and The Confidence Gap. Bev Aisbett is an author, illustrator, and cartoonist. She is also a trained counselor and facilitator of anxiety recovery workshops.