Living Beyond Your Pain: Using Acceptance & Commitment Therapy to Ease Chronic Pain is a self-help book on ACT focused on chronic pain. This book is based on pain interventions that have been shown to be effective in at least three studies, so there is some evidence that this might be helpful.
Act on Life Not on Anger: The New Acceptance & Commitment Therapy Guide to Problem Anger is another self-help book on ACT. I haven't read it yet, but have had a couple clients say it was quite helpful. The authors are experienced ACT therapists and authors.
Get Out of Your Mind and Into Your Life is the first self-help book on ACT written by Steven Hayes, the primary originator of the ACT approach. This book is a great introduction to ACT for both professionals and non professionals. It has a lot of exercises and worksheets that allows you to work through [...]