This book is about three West African sign languages with different time-depths, community sizes and patterns of social interactions. Adamorobe Sign Language (AdaSL), Ghana, is an old village sign language used by 33 deaf people. Langue des Signes de Bouakako (LaSiBo), Côte d'Ivoire, is new and used by six deaf people in a village. Língua Gestual Guineense, Guinea-Bissau, is an emerging school-based sign language used by around 500 deaf people.

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