This training is for substance abuse professionals, social workers and other service providers interested in increasing their therapeutic effectiveness in working with clients presenting with post - traumatic stress disorder. Many substance abuse clients and mental health clients report having traumatic experiences in their past. Addressing these issues may increase their possibilities of ongoing recovery and reduce the recidivism rate. Participants will be provided with information to assist in helping the client understand and identify trauma and how it affects their recovery efforts. This training is designed to equip the Human Service Worker with CBT tools to assist the traumatized client with the ability to think rationally and restructure their perspective, while equipping the client with self-instruction problem solving and coping tools. Participants will view videos, engage in interactive discussion and share in case study break-out sessions using theories and approaches presented in this training.