Dr. Wilson has devoted himself to the development and dissemination of ACT and its underlying theory and philosophy for the past 20 years, publishing 38 articles, 28 chapters, and 6 books including Acceptance and Commitment Therapy: An Experiential Approach to Behavior Change and Mindfulness for Two. He has central interests in the application of behavioral principles to understanding topics such as meaning and values, therapeutic relationship, and present moment focused work. Dr. Wilson has presented workshops in 20 countries, and has participated as co-investigator in a wide range of research in the U.S., Sweden, Spain, and the United Kingdom. Kelly is one of the co-developers of Acceptance and Commitment Therapy, and is a former President of ACBS.