G. K. Hall & Co.

G. K. Hall & Co. is an American book publisher based in Boston. It was founded sometime in the late 1950s by Garrison Kent Hall (1917–1973), who also had been an accountant. The firm initially, in the late 1950s through the 1960s, produced catalogs, in print and microform, of collections of renowned libraries — notably the New York Public Library. In the 1960s, the firm expanded, producing other library references in the sciences, humanities, fine arts, and music. Source: Wikipedia.