The Encyclopedia of Recorded Sound is a reference work that, among other things, describes the history of sound recordings, from November 1877 when Edison developed the first model of a cylinder phonograph, and earlier, in 1857, when Léon Scott de Martinville invented the phonautograph.[1] The first edition – Guy Anthony Marco, Phd (born 1927) (editor),[2] and Frank Andrews (1920–2015)[3] (contributing editor) – was published in 1993.[4][5][6] The second 2-volume edition, published in 2005, spans one hundred forty-seven years of recorded sound.[7][8] Frank W. Hoffman, PhD (born 1949),[9] of Sam Houston State University is Editor and Howard William Ferstler (born 1943) of Florida State University[10] is Technical Editor.[11]