'''''Collier's Encyclopedia''''' was a general [[encyclopedia]] first published by P.F. Collier & Son, and in print from 1902 to 1997. Meant for high school and college students, it had 20 volumes by 1950; by the time it finished its run in 1997 it had 24 volumes with over 23,000 entries. The quality of the writing - it had an extensive list of well-known, credentialed authors - placed ''Collier's Encyclopedia'' alongside ''[[Encyclopedia Americana]]'' and ''[[Encyclopædia Britannica]]'' as one of the great English language general encyclopedias of the 20th century. | '''''Collier's Encyclopedia''''' was a general [[encyclopedia]] first published by P.F. Collier & Son, and in print from 1902 to 1997. Meant for high school and college students, it had 20 volumes by 1950; by the time it finished its run in 1997 it had 24 volumes with over 23,000 entries. The quality of the writing - it had an extensive list of well-known, credentialed authors - placed ''Collier's Encyclopedia'' alongside ''[[Encyclopedia Americana]]'' and ''[[Encyclopædia Britannica]]'' as one of the great English language general encyclopedias of the 20th century. |