Gregoris Simos is Assistant Professor of DevelopmentalPsychopathology at the University of Macedonia, Greece. Dr. Simosis the editor of CBT: A Guide for the Practicing Clinician,Volumes I (2002) and Volume II (2009), and a co-founder andPresident of the Greek Association for Cognitive and BehavioralPsychotherapies (GACBP). Stefan G. Hofmann is Professor of Psychology atBoston University and the Director of the Psychotherapy and EmotionResearch Laboratory. He is a former editor of Cognitive andBehavioral Practice, incoming editor of Cognitive Therapy andResearch, associate editor of the Journal of Consulting andClinical Psychology and author of more than 200 peer-reviewedjournal articles and book chapters, and 9 books, including AnIntroduction to Modern CBT (2011, Wiley-Blackwell). He is alsothe 2011 President of the Association for Behavioral andCognitive Therapies.