Unknown Pleasures is the debut studio album by English rock band Joy Division, released on 15 June 1979 on Tony Wilson's Factory Records label. The album was recorded and mixed over three successive weekends at Stockport's Strawberry Studios in April 1979 and was produced by Martin Hannett, who incorporated a number of unconventional recording and production techniques into the group's sound. The cover artwork was designed by artist Peter Saville. It is the only Joy Division album released during lead singer Ian Curtis's lifetime. Factory Records did not release any singles from Unknown Pleasures, and the album did not chart despite the relative success of the group's non-album debut single Transmission.