This book aims to be a useful aid for both B' Lyceum students and colleagues.

Each chapter consists of sections, each of which contains:

-Theory in the form of questions-answers, accompanied by comments and observations.
-Methodologies - Applications.
-Reinforcement & deepening applications.
-Comprehension questions, which aim to test the knowledge acquired by the student.
-Assessment sheets for complete assimilation of the material.

In the last section of the book, there are answers-guidelines for all applications, comprehension questions, and exams.