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.Der Fall Otto Weininger: Eine psychiatrische Studie by Ferdinand ProbstAuthor: Probst, Ferdinand,Language: German, Class: BF: Philosophy, Psychology, Religion: Psychology, Philosophy, Psychoanalysis, Release Date: Aug 28, 2012