CSCL has in the past 15 years (and often in conjunction with Springer) grown into a thriving and active community. Yet, lacking is a comprehensive CSCL handbook that displays the range of research being done in this area. This handbook will provide an overview of the diverse aspects of the field, allowing newcomers to develop a sense of the entirety of CSCL research and for existing community members to become more deeply aware of work outside their direct area. The handbook will also serve as a ready reference for foundational concepts, methods, and approaches in the field. The chapters are written in such a way that each of them can be used in a stand-alone fashion while also serving as introductory readings in relevant study courses or in teacher education. While some CSCL-relevant topics are addressed in theย International Handbook of the Learning Sciencesย and theย International Handbook of Collaborative Learning, these books do not aim to present an integrated and comprehensive view of CSCL. Theย International Handbook of Computer- Supported Collaborative Learningย ย covers all relevant topics in CSCL, particularly recent developments in the field, such as the rise of computational approaches and learning analytics.