This second edition course text provides a general overview of jet physics by presenting the basic experimental and theoretical problems arising when dealing with jets, and describing the solutions proposed in recent years. This book covers jet algorithms, the theory of strong interactions (QCD), and how, from a set of observed jets, it is possible to extract information about the elementary event that has produced them. As a second edition, this book builds upon and complements the first through updated and significantly expanded chapters. Fully worked-out examples within each chapter invite the reader to appreciate the relevant questions that arise in cutting-edge research on jet physics. Key Features Accessible to undergraduate and postgraduate students Provides a concise introduction to both QCD and jet physics Enables the reader to access the relevant literature on the topic Presents the most recent advances in the field Contains fully worked-out examples and an extensive bibliography in each chapter.