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.A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, MéxicoAuthor: Duellman, William Edward, 1930-,Language: English, Class: QH: Science: Natural history, Release Date: Dec 30, 2011