The Center for Trauma Care and Research (CTRO) in collaboration with the Department of Psychology of the Royal University of Phnom Penh organized a training course on “Cognitive Processing Therapy” which was held on from January 27-28, 2023 in the CTRO office. This course was trained by Prof. Dr. Steven E. Bruce, Director of the Center for Trauma Recovery. The number of participants in this training was 27. All of them are professional mental health as well as Master’s students in clinical psychology from the Royal University of Phnom Penh.