33⅓

One-time series editor Ally-Jane Grossan described Barker as "an obsessive music fan who thought, 'This is a really cool idea, why don't we apply this to albums.

'"[3] PopMatters wrote that the range consists of "obscure classics to more usual suspects by the Beach Boys, the Beatles, and the Rolling Stones".

A rejected proposal from writer Brett Milano for an entry on Game Theory's 1987 album Lolita Nation was instead expanded by Milano into a biography on the band's leader Scott Miller; that project, titled Don't All Thank Me at Once: The Lost Genius of Scott Miller, was released by 125 Books in 2015.

[5] In August 2017, Bloomsbury announced the launch of 33+1⁄3 Global,[6] an extension of the 33+1⁄3 series to popular music from around the world.

[8] The first books for 33+1⁄3 Japan were Supercell ft. Hatsune Miku by Keisuke Yamada and Yoko Kanno's Cowboy Bebop Soundtrack by Rose Bridges.