Bahá'í Subject Headings Database This database provides access to the subject headings developed at the International Bahá'í Library during the process of cataloguing Bahá'í publications in a library that holds a comprehensive collection of materials about the Bahá'í Faith. It is being offered here as an assistance to cataloguers of Bahá'í books, and contains the authority records of the established headings, and the "Used For" with Broader, Narrower, and Related terms shown. Most also include suggested classification numbers associated with the subject heading.