The Ryerson & Burnham Libraries are the art and architecture research collection of the Art Institute of Chicago. The libraries cover all periods with extensive holdings in the areas of 18th-, 19th- and 20th-century architecture and 19th-century painting, prints, drawings, and decorative arts. A variety of materials important to scholarly research includes architects' diaries, correspondence, job files, photographs, sketchbooks, scrapbooks, articles, transcripts, and personal papers. The complete collection of Bruce Goff artifacts is housed within the libraries.