Book excerpt: In this long-awaited sequel to Inside/Outside: Teacher Research and Knowledge, two leaders in the field of practitioner research offer a radically different view of the relationship of knowledge and practice and of the role of practitioners in educational change. In their new book, the authors put forward the notion of inquiry as stance as a challenge to the current arrangements and outcomes of schools and other educational contexts. They call for practitioner researchers in local settings across the United States and across the world to ally their work with others, as part of larger social and intellectual movements for social change and social justice.