The aim of this book is to help its readers to get started with Unitex. This book is suitable for beginners, but also includes entire sections to go further in mastering Unitex, sections indicated as "only for confident users". It covers most of its possibilities, although not all of them. Namely: Chapter 2 (First steps): Installing and starting to work with Unitex; use of dictionaries; creation of simple graphs... Chapter 3 (Corpus annotation): Creation of complex graphs with output; use of weights; morphological mode... Chapter 4 (CasSys): Creation of cascades of graphs; generalization graphs, negative right context, use of variables; testing variables... Chapter 5 (Dictionary creation): Creation of dictionaries; inflectional graphs; dictionary graphs... Chapter 6 (Other tools): Creation of graphs based on a lexicon-grammar; aligning texts. Chapter 7 (Scripts): Creation of scripts. This book proposes a large number of exercises and micro-projects that can be implemented step by step by following the text. The different chapters are relatively independent. For a user already familiar with Unitex, this book can be used differently, as a book of correct examples. The book comes with a zipped file (MyUnitex.zip) including all correct files (graphs, cascades, dictionaries, scripts and so on) answering the exercises. The early chapters also include videos detailing the step-by-step construction of the graphs. A hardware version is also available from Amazon, but it requires a fee.