Book of Love is an American synthpop and electronic band, formed in 1983 in Philadelphia, Pennsylvania and later based out of New York City. Led by vocalist Susan Ottaviano, the band also includes keyboardists Ted Ottaviano (no relation to Susan), Lauren Roselli and Jade Lee. The band gained its first exposure as the opening act for two Depeche Mode tours in 1985 and 1986. The group has been described by the Houston Press as "forward thinking" for lyrics dealing with sexual orientation and gender roles.

Their biggest success came on the US dance charts, placing seven singles in the Billboard Hot Dance Club Play chart between 1985 and 1993. The group's largest exposure on pop radio was with the song "Pretty Boys And Pretty Girls", one of the first songs to openly address the AIDS epidemic. The song, from the album Lullaby, was originally the second half of a medley with the group's version of Mike Oldfield's "Tubular Bells," the 1973 instrumental that served as the eerie theme music of the classic horror film The Exorcist. Edited down to single length, "Pretty Boys And Pretty Girls" became Book of Love's only Hot 100 entry, peaking at number 90 in 1988.