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.The Motor Boys in Mexico; Or, The Secret of the Buried City by Clarence YoungAuthor: Young, Clarence,Language: English, Class: PZ: Language and Literatures: Juvenile belles lettres, Release Date: Jul 12, 2013