This book introduces Tay people’s literature in writing, from the origin to the development as Han Nom documents. The author focuses on folk tales told in form of prose and verse during progress of interference between Tay and Kinh, Tay and other minorities in northern mountainous area. The content of the book is divided as follows: 1- Document of Tay people. 2- Nom script literature of Tay people. 3- Han script literature of Tay people.