Collier's Encyclopedia is a discontinued general encyclopedia first published in 1949 by P.F. Collier and Son. Collier's Encyclopedia was an entirely new, 20 volume work, with the first volumes available in 1949 and all volumes published by 1951. It had more than 2,000 contributors, included 10,000 black and white illustrations, 96 pages of four-color illustrations, 126 colored maps and 100 black and white line maps. There were more than 400,000 index entries. Collier's Encyclopedia was beautifully printed, with the paper stock of top quality. The end sheets portrayed the development of civilization, and the cover stamping was 22-carat gold, with red panels on black.