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.Neotropical Hylid Frogs, Genus Smilisca by William Edward Duellman and Linda TruebAuthor: Trueb, Linda, 1942-,Language: English, Class: QL: Science: Zoology, Release Date: Oct 22, 2011