The international collection of essays contained in this volume offer a comprehensive look at how small groups are being employed in the field of education today and the purposes for which they are being used. Where teaching is concerned, readers of this volume come to know how teachers experience professional development in book clubs, Critical Friends Groups, and teacher research groups and how action research has been used by teachers in a particular curriculum reform project. Where teacher education is concerned, readers are afforded an insider view of what is happening in various cohorts and other small group configurations throughout the nation and the world, particularly with respect to diversity. Finally, readers catch a glimpse of what is occurring in higher education and how professors learn to be teacher educators, contributing members of the academy, and collaborative colleagues in their efforts to support and enhance student learning along the educational continuum.