This book is an approach to the Ancient Greek course of the third year of high school, specifically the first unit, the Platonic dialogue Protagoras, based on the modern principles governing its teaching in high school.

In each of the 7 units included in this book, the following are included:
- Transcription of the original text into modern Greek.
- Grammatical - Lexical comments.
- Connection with previous content - Semantic rendering.
- Detailed presentation of the unit's content, which, among other things, focuses on the presentation, analysis, and evaluation of the argumentation of the two philosopher-interlocutors.
- Specific topics covering broader approaches to concepts as well as indicative handling of evaluation topics.
- Connection of the analyzed concepts with contemporary reality.
- Recap questions to check knowledge regarding the concepts and topics addressed in each unit.
- Evaluation criteria with taught and untaught text, the answers to which are gathered at the end of the book.