The book "Didactics of Computer Science" offers a comprehensive and practice-oriented introduction to the didactics of the subject of computer science. It is aimed at educators who not only possess subject knowledge but also wish to have the ability to convey this knowledge to students. The authors clarify fundamental concepts of computer science and its didactics and present a basic model for objectives, content, and teaching methods in computer science education. The various chapters focus on central topics such as problem-solving, computational modeling, object orientation, and computer systems, discussing the didactic possibilities in the tension between scientific demands and educational policy requirements. The new edition takes into account current developments in competence-oriented didactics and provides expanded content on topics such as networking and the internet. Additionally, innovative approaches to teaching computer science content, including "unplugged" methods, are addressed.