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.Manual of the Trees of North America (Exclusive of Mexico) 2nd ed. by SargentAuthor: Sargent, Charles Sprague, 1841-1927,Language: English, Class: QK: Science: Botany, Release Date: Jul 30, 2014