Project Gutenberg was the first provider of free electronic books, or eBooks. Michael Hart, founder of Project Gutenberg, invented eBooks in 1971 and his memory continues to inspire the creation of eBooks and related technologies today.Caruso and Tetrazzini on the Art of Singing by Enrico Caruso and Luisa TetrazziniAuthor: Tetrazzini, Luisa, 1871-1940,Language: English, Class: MT: Music: Musical instruction and study, Composition, Release Date: Dec 9, 2006