This bibliography provides information on research about writing and written language over the past 50 years in the 20th century. It contains a selection of some 27,500 titles and covers literature in all scientific fields relating to writing. Emphasis is placed on the interdisciplinary organization of the bibliography. It is organized in such a way as to provide the specialist as well as the researcher in neighbouring disciplines with access to the relevant literature on writing in a given field. While necessarily selective, it also offers information on more specialized bibliographies.