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.Price/Cost Indexes from 1875 to 1989; Estimated to 2010 by Michael HartAuthor: Hart, Michael, 1947-2011,Language: English, Class: HG: Social sciences: Finance, Release Date: Nov 1, 1993