Offering first-hand insights from the early originators of Cooperative Learning (CL), this volume documents the evolution of CL, illustrating its historical and contemporary research, and highlights the personal experiences which have helped inspire and ground this concept. Each of the chapters in foregrounds a key approach to CL, and documents the experiences, research, and fruitful collaborations which have shaped and driven their development. Contributions from leading scholars include Aronson, Davidson, Kagan, Johnson & Johnson, Schmuck, the Sharans, Slavin and Madden, as well as retrospective pieces on the work of Deutsch and Cohen. These chapters detail the historical development of cooperative learning, cooperation versus competition, and cover major approaches including the jigsaw classroom; complex instruction; the learning together model, and several more. Chapters include qualitative, personal, and retrospective accounts, whereby authors outline the research and theory which underpins each approach while highlighting practical strategies for classroom implementation. This text will primarily be of interest to professors, researchers, scholars, and doctorial students with an interest in the theory of learning, educational research, and educational and social psychology more broadly. Practitioners of CL with an interest in varied forms of small group learning and classroom practice, as well as those interested in the history and sociology of education, will also benefit from the volume.