This benchmark text provides an accessible yet critical introduction to the theory and application of communities of practice and their use in a diverse range of managerial and professional contexts, from education to human resource development. This book charts the development of the idea of communities of practice and explores the key relationship between learning and identity among: newcomers and ‘old timers’ male and female workers the low skilled and the high skilled professionals and managers adults and adolescents. Drawing on international empirical studies and adopting a multi-disciplinary approach, this book is useful reading for all students, researchers, practitioners and policy makers with an interest in work, employment, labour markets, learning, training or education.