Compton's Encyclopedia and Fact-Index is a home and school encyclopedia first published in 1922 as "Compton's Pictured Encyclopedia". The word "Pictured" was removed from the title with the 1968 edition. The encyclopedia is now advertised as Compton's by Britannica.
Encyclopædia Britannica, Inc. initially owned Compton's Encyclopedia from 1961 to 1993, and later reacquired it in 2002. Britannica had sold its Compton's interests to the Tribune Company in 1993, and for a time Compton's Encyclopedia was a product of The Learning Company, which purchased Brøderbund in 1998. In March 2002 Encyclopædia Britannica, Inc. "acquired an exclusive license to publish and distribute Compton's Encyclopedia in print and CD-ROM from Broderbund LLC and Success Publishing Group".
- Compton's Encyclopedia, 8 volumes, 1922
- 10 volumes, 1924, 1926, 1929
- 16 volumes, 1931
- 15 volumes, 1948
- 1937, 1938, 1940, 1941, 1945, 1949, 1950, 1951, 1953, 1956, 1957, 1958, 1962
- Compton's Encyclopedia and Fact-Index, 24 volumes 1969-1971
- 22 volumes, 1972, 1973
- 26 volumes, annually 1974-1978 and 1980–1995, 2004
- Compton's by Britannica
- 26 volumes, 2009
- Compton's Multimedia Encyclopedia, CDROM, 1989, the first "multimedia" CD-ROM
- Compton's Family Encyclopedia, CDROM, 1991, a "stripped down" version of Compton's Multimedia Encyclopedia
- Compton's Interactive Encyclopedia, CDROM, 1993, 1995 through 2001.
Britannica's 1989 Compton's Multimedia Encyclopedia was the first "multimedia" CD-ROM encyclopedia. It won the 1991 Software Publishing Association Excellence in Software Award for Best Education Program.
Variants of Compton's CD-ROM encyclopedias were Compton's Concise Encyclopedia, Compton's Family Encyclopedia, and Compton's Interactive Encyclopedia.
The musical instruments that are heard are an accordion, an African kalimba, an Australian didgeridoo, a banjo, a bassoon, castanets, a celesta, a cello, a Chinese erhu, a Chinese qin, a clarinet, conga drums, cymbals, a double bass, a flute, a French horn, a guiro, a classical guitar, an electric guitar, a harmonica, a harp, a harpsichord, a hi-hat cymbal, a Hungarian cimablom, an Indian sitar, an Indian tabla, a Japanese koto, a Japanese shakuhachi, a lute, maracas, a marimba, a Middle Eastern oud, an oboe, an organ, a piano, a piccolo, a recorder, a Russian balalaika, an alto saxophone, a tenor saxophone, Scottish bagpipes, a snare drum, a South American quena, a tambourine, timbales, timpani, a triangle, a trombone, a trumpet, a tuba, tubular bells, a ukulele, a vibraphone, a viola, a violin, and a xylophone.