Carlo C. DiClemente, PhD, is a Professor in the Department of Psychology at the University of Maryland, Baltimore County. He received his MA in Psychology from the New School for Social Research and his PhD in Psychology from the University of Rhode Island. The codeveloper with Dr. James Prochaska of the transtheoretical model (TTM) of behavior change, Dr. DiClemente has published numerous articles, chapters, and books. For over 20 years, he has conducted funded research in health and addictive behaviors. He has directed an outpatient alcoholism treatment program and serves as a consultant to private and public treatment programs. The recipient of the Maryland Psychological Association's 2002 Distinguished Contribution to Scientific Psychology award, Dr. DiClemente was also one of five winners of the 2002 Innovators Combating Substance Abuse award given by the Robert Wood Johnson Foundation.DiClemente, Carlo C. is the author of 'Addiction and Change: How Addictions Develop and Addicted People Recover (The Guilford Substance Abuse Series)', published 2006 under ISBN 9781593853440 and ISBN 1593853440.