The Teach Yourself Books Welsh Language Course by Dorothy P.H. Wrenn, J. T. Bowen, and T. J. Rhys Jones is a beginner-level language course that focuses on Welsh history. Published in 1976 by EP Publishing Limited, this book offers 96 pages of English and Welsh language content for those interested in learning more about the Welsh language and history. The series, Teach Yourself Books, is known for its approachable and effective language courses, making this a valuable resource for anyone looking to expand their knowledge of Welsh language and history.