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.An Annotated Check List of the Mammals of Michoacán, México by E. Raymond Hall et al.Author: Villa Ramírez, Bernardo, 1911-,Language: English, Class: QH: Science: Natural history, Release Date: Mar 22, 2012