In this volume Elisabeth and Marinus Wiering present five articles which represent their research on the Doyayo language using a descriptive linguistic approach. Doyayo, which is spoken by 15,000 people, belongs to the Duru group of the Adamawa-Eastern language family in the North Cameroon and Northwest Cameroon regions. This volume was written to make the Wierings' collected data available to the academic community, as well as to educated Doyayos, with the hope that it would contribute to the ongoing study of their language. The articles cover phonology, structure of indicative verbs, tone patterns of nominals, some major syntactic structures, and some features of folk-tales.