33 1/3
33+1⁄3 (Thirty-Three and a Third) is a series of books with its first installation in 2003, and is published by Bloomsbury Publishing since 2010. The books are about albums from various musical genres. As of 2025, 196 books have been published in the main series. Six additional series have been published, all of them specific to a region except for one about music genres.