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.Tactics and Duties for Trench Fighting by Bertrand and SolbertAuthor: Solbert, Oscar N., 1885-1958,Language: English, Class: UG: Military science: Military engineering, Release Date: Apr 20, 2019