This book is the first general introduction to African languages and linguistics to be published in English. It covers the four major language groupings (Niger-Congo, Nilo-Saharan, Afroasiatic and Khoisan), the core areas of modern theoretical linguistics (phonology, morphology, syntax), typology, sociolinguistics, comparative linguistics, and language, history and society. Basic concepts and terminology are explained for undergraduates and nonspecialist readers, but each chapter also provides an overview of the state of the art in its field, and as such will be referred to by more advanced students and general linguists.