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 Library of Work and Play: Working in Metals by Charles Conrad SleffelAuthor: Sleffel, Charles Conrad,Language: English, Class: TT: Technology: Handicrafts, Arts and crafts, Release Date: Feb 24, 2014