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.On The Principles of Political Economy, and Taxation by David RicardoAuthor: Ricardo, David, 1772-1823,Language: English, Class: HB: Social sciences: Economic theory, Demography, Release Date: Jul 31, 2010