School Psychology is a branch of the science of psychology that has seen significant development in many countries around the world in recent decades. It is one of the most applied branches of psychology and is directly connected to everyday school reality.

It involves providing psychological and counseling services in schools/educational settings to facilitate the school and psychosocial adjustment of students, as well as to promote the mental health, psychological resilience, and well-being of all members of school communities. It targets students of all ages (primary and secondary education), teachers, parents, and other adults, with the aim of enhancing their skills to develop quality relationships and create a positive climate that fosters development, learning, and adjustment.

This book, a fully revised and comprehensive introductory manual on the subject of School Psychology, aims to contribute to the effort of developing the field and to future directions for expanding the psychological services offered in the Greek educational system. It emphasizes social justice and advocacy, psychological dialectical counseling, prevention and intervention programs, crisis management, and organizational changes at the system level.

It is aimed at undergraduate and graduate students, school psychologists, scientists, and mental health professionals, educators, and those interested in facilitating learning and promoting mental health and psychological resilience, as well as prevention in the school community.