In recent years, there has been a significant increase in interest in Greece regarding the development, implementation, and evaluation of psychoeducational programs. However, the Greek literature concerning the theory of psychoeducational programs is limited to nonexistent.

This handbook aims to fill an important gap in Greek literature and meets the need for practical manuals, given that the interest in the implementation and evaluation of group programs for children and adolescents in our country has begun to emerge in recent years.

By making it public, there is hope that it will be useful for students in Educational Departments, Psychology, and Social Work, but it will also serve as a significant tool for both new and experienced researchers and practitioners who wish to design, implement, and evaluate intervention programs.