The Dark Side of the Moon is the eighth studio album by English rock band Pink Floyd, released on 1 March 1973. A concept album, its themes explore conflict, greed, time, death, and mental illness.
The Dark Side of the Moon received critical acclaim upon release, and has since been hailed by critics as one of the greatest albums of all time. With estimated sales of over 45 million copies, it is Pink Floyd's best seller, and one of the best-selling albums worldwide.
The sleeve, which depicts a prism spectrum, was designed by Storm Thorgerson, following keyboardist Richard Wright's request for a "simple and bold" design, representing the band's lighting and the record's themes.