This book is the result of an active exchange between the two authors and researchers at universities, as well as practitioners at workshops and tutorials. It conveys insights gained from teaching courses on the topic of CSCW, as well as collected experiences from project work in the industry regarding the selection and implementation of CSCW solutions. The book's specific strengths include: it is based on a socio-technical perspective and combines experiences and results from social sciences and computer science. It provides a consistent overview of the topic, compiled collaboratively by the two authors. It is accompanied by a collection of teaching and learning materials for instructors, students, and practitioners. The book is modular in structure and divided into four sections: Section I introduces the field of CSCW.