For more than three years, British psychologist David Chantry followed the daily activity on the acceptance and commitment therapy (ACT) Listserve, recognizing that he was witnessing one of the most innovative and excitiing discussions in the field of contemporary psychotherapy. In this book, he has collected many of his observation of this nascent period, a selection of proposals, arguments, and elucidations from many of leaders in this area, including Steven Hayes, Kelly Wilson and other leading figures in the world ACT community. Having started life as a personal archive, the collection contains discussions on the main principles of ACT, its application to particular presenting problems, ACT resources (e.g., new metaphors and exercises), and clinical issues. Also included are postings describing the theoretical, scientific and philosophical roots of ACT, discussing new research findings, and comparing and contrasting ACT with other therapeutic approaches