This second edition of the The SAGE Handbook of Action Research has been updated to bring chapters in line with the latest qualitative and quantitative approaches in this field of social inquiry. Peter Reason and Hilary Bradbury have introduced new commentaries that draw links between different contributions and show their interrelations. Contributing authors engage with the pragmatics of doing action research and demonstrate how this can be a rich and rewarding reflective practice. They tackle questions of how to integrate knowledge with action, how to collaborate with co-researchers in the field, and how to present the necessarily 'messy' components in a coherent fashion. The organization of the volume reflects the many different issues and levels of analysis represented.