It consists of 51 lessons (1 Introductory Lesson + 20 double Lessons (a and b) + 10 Revision Lessons) that include interesting texts with relevant vocabulary and accompanying exercises (Reading, Listening, Speaking). At the end of the book, there is an Appendix with the vocabulary (Word List) and phrases (Phrases) of the lessons organized alphabetically and a list of Irregular Verbs.

This is a B1 level book that combines grammar and vocabulary. It consists of 50 lessons (20 double Lessons (a and b) + 10 Reviews) that include grammar theory, vocabulary, and a wide variety of exercises. At the end of the book, there are a Glossary, tables with Verbs & Tenses, and a list of Irregular Verbs. The book is accompanied by a Test Booklet with 10 Revision Tests.