Localizing Apps is not a book about localizing mobile applications, as the title may seem to suggest; rather, it is a book about localization, with an emphasis on software localization and all the essentials surrounding it. The author has a clear audience in mind — translators and translation students (pp. 10-11) — and introduces the topic of localization from a didactical perspective, bringing together valuable information with practical exercises. The book is supplemented by a website, which contains code examples that are required to complete some of the exercises. The main content of the book is divided into five main chapters that present the field of localization in a sequential manner, from programming to advanced localization.