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.Graded Literature Readers: Fourth Book by Ida C. Bender and Harry Pratt JudsonAuthor: ,Language: English, Class: PE: Language and Literatures: English, Release Date: Jul 1, 2015