This book offers the first collection of international academic writing on the topic of teaching assistants. It serves as an indicative summary of current research and thinking in this field and as a point of departure for future research and development. With contributions from leading researchers, the book draws together empirical work on the deployment and impact of teaching assistants from various perspectives and from a range of methodological approaches. It highlights and celebrates the vital everyday contributions teaching assistants make to their schools and their communities: from their role within classrooms, to their moment-by-moment interactions with pupils and teachers. The book examines the effect that teaching assistants can have on pupils' learning and wellbeing, and considers issues of over-dependence on classroom paraprofessionals and the unintended consequences to which this can lead. Bringing together work from a journal special issue with brand-new and updated chapters, the contributions offer insight into the liminal space between educator, caregiver, behaviour manager, and facilitator of learning and of peer relations, which characterizes the teaching assistant role. This timely and important book will be essential reading for academics, researchers, and students interested in special educational needs, disability, and inclusion, and those interested in the wider topic of paraprofessionals in labour markets.