Source: https://www.nytimes.com/2018/01/19/arts/design/how-an-artist-learned-about-freedom-from-the-negro-motorist-green-book.html?rref=collection%2Fsectioncollection%2Farts&action=click&contentCollection=arts®ion=rank&module=package&version=highlights&contentPlacement=1&pgtype=sectionfront