Geogaddi is the second studio album by Scottish electronic music duo Boards of Canada, released on 18 February 2002 by Warp Records. The album marks a darker sound from the group's debut album Music Has the Right to Children (1998). Characterized by heavily manipulated samples, analog textures and extensive use of subliminal messaging and backmasking, Geogaddi has been noted for its cryptic and mysterious sound design. The album's themes draw on numerology, paganism, the occult and religious cults. The album was recorded between 1999 and 2001 at the group's Hexagon Sun studio in the Pentland Hills. Upon release, Geogaddi received widespread critical acclaim and was ranked among the best albums of 2002 by several publications. It has retrospectively been recognized as a defining work of intelligent dance music, with Pitchfork naming it the fifth-best album of the genre in 2017.