This book aims to help students check their knowledge and practice the Language subject. For this reason, it follows the school book lesson by lesson, focusing on grammar, syntax, spelling, and vocabulary.

Each lesson includes:
- the grammar and/or syntax of the lesson
- the spelling of the lesson
- the vocabulary of the lesson (synonyms and antonyms of the most important words in the text)
- multiple-choice questions-exercises.

At the end of each unit, there is "Speaking and Writing Correctly," with questions-exercises regarding common mistakes in written and spoken language.

The answers to all the questions are found at the end of the book.

(from the author's preface)