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.A Book Written by the Spirits of the So-Called Dead by Carl Gustav HellebergAuthor: ,Language: English, Class: BF: Philosophy, Psychology, Religion: Psychology, Philosophy, Psychoanalysis, Release Date: May 1, 2011