The first section of the Introduction to Psychology covers the Biological, Developmental, and Behavioral Approaches of Psychology, as well as the field of Cognitive Psychology. This section includes chapters such as: "The Science of Psychology", "Biological Bases of Behavior", "Development", "Learning", "Perception", "Memory", "Thinking", "Language", etc.

The second section provides a broad overview of the field of Social and Clinical Psychology. The presentation of topics successfully balances between the basic introduction and a deeper examination of the field with references to research methods. The first part of the section focuses on Social Psychology. It begins with an exploration of how individuals' thoughts, emotions, and behaviors are influenced by the presence of others. The second part of the section focuses on Clinical Psychology. The main psychotherapeutic approaches are developed and a discussion is held regarding clinical research, psychotherapeutic practice, and the future of the field.

This work fully covers a significant gap in the field of Greek literature in modern Psychology, with a work written by Greek psychologists and specifically tailored to the educational needs of Greek students.