Sleeve M; Vinyl M. Leftism is the debut studio album by British electronic duo Leftfield, released on January 30, 1995. The album is renowned for its innovative fusion of house, dub, and techno, featuring standout tracks like "Release the Pressure," "Open Up" (featuring John Lydon), and "Afro-Left." Critically acclaimed, Leftism played a pivotal role in bringing electronic music to a broader audience in the UK and beyond. An absolute classic and a Hair of the Dog Vinyl favourite.