This book is a comprehensive aid for students of the Orientation Group of Economics and Informatics Studies in the 12th grade, as well as a useful guide for educators who will be teaching the subject of Economics. Thanks to its completeness, the validity of its content, and its methodical development, it ensures students' success in the Panhellenic Examinations.

Specifically, each chapter includes:
- A concise presentation of concepts with diagrams
- A detailed presentation of the theory with questions and answers, clear diagrams, and additional information and clarifications where necessary
- Development of the basic methodology for solving exercises, suggestions, formulas, and many solved exercises
- Supplementary questions and exercises aimed at cultivating critical thinking

The book is complemented with evaluation criteria (per chapter and review), worksheets, and the topics of the Panhellenic Examinations (Topics A and B) that have been set, grouped by chapter. Following are the answers to all supplementary exercises and evaluation criteria, as well as the answers to all exercises in the school textbook.