A structured individual psychotherapy intervention for Children and Adolescents ages 8-15 who are depressed. Treatment sessions and take-home practice assignments are built on research findings concerning cognitive and behavioral features of depression in children and adolescents, and on the two-process model of perceived control and coping. As suggested by that model, children are trained to gain control of their mood by developing skills that will help them cultivate primary control (i.e., changing objective conditions to make them fit their wishes) and secondary control (i.e., changing themselves [e.g., their expectations, interpretations] so as to adjust to objective conditions and thus control their subjective impact). The sessions include within-session exercises and take-home practice (i.e., homework) assignments, guided by an ACT & THINK Practice Book that each child uses throughout the program, and keeps afterward.