Art Tatum is generally acknowledged to be the greatest jazz pianist of all time. This is both a catalog and a source book to his recorded music. Included in this meticulously constructed computer-aided discography are the details of 629 issued performances on 224 different record labels originating in 19 countries, as well as 238 unissued performances, with an easy-to-use chronological discography, an unissued sessions list, a compilation of issued discs, cross-referenced with the chronological discography, an alphabetical index of titles, a musician index, and an 'Imitatums' section, which lists efforts by other musicians to play in Tatum's style.