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.Studies and Exercises in Formal Logic by John Neville KeynesAuthor: Keynes, John Neville, 1852-1949,Language: English, Class: BC: Philosophy, Psychology, Religion: Logic, Release Date: May 24, 2019