This chapter presents a combined creative-corrective approach to working with the bereaved by emphasizing on cognitive assessment as a tool for social workers. It determines how best to facilitate an adaptive grief process with individuals who experience traumatic loss or complicated grief. Cognitive therapies (CT) and cognitive behavior therapies (CBTs) were found suitable with individuals suffering from posttraumatic stress disorder (PTSD), anxiety, and chronic or traumatic grief. Grief as a process of reorganizing one’s life and searching for a meaning following a loss through death is a painful experience. The Adversity Beliefs Consequences (ABC) model is based on a cognitive theoretical model to be applied in treatment of bereaved individuals. Like other cognitive models, rational emotive behavior therapy (REBT) emphasizes the centrality of cognitive processes in understanding emotional disturbance, distinguishing between two sets of cognitions that people construct, rational and irrational ones and their related emotional and behavioral consequences that differ qualitatively.