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.Middle American Frogs of the Hyla microcephala Group by Duellman and FouquetteAuthor: Fouquette, M. J.,Language: English, Class: QH: Science: Natural history, Release Date: Dec 9, 2010