Introduction

There are two fundamental questions that should be answered before buying, and even more before reading, a book:

• Why should one read the book?

• What is the book about?

This is the reason why this section, the first of the whole text, proposes some motivations for potential readers (Section 1.1.1) and an overall description of the content (Section 1.1.2). If the answers are convincing, further information can be found in the rest of this chapter: Section 1.2 shows in detail the structure of the book, Section 1.3 presents some features that can help the reader to better move through the text, and Section 1.4 provides some reading tracks targeting specific topics.