A few great album and brochure covers by Matthew Leibowitz, whose work I was unaware of until stumbling across this feature on Display. (Speaking of Mencken, why does he get all the good covers? Case in point, this classic by Paul Rand.)
Display is run by Kind Company, who, between this site and their Alvin Lustig archive, have done so much good work to promote the history of graphic design these last few years. Thank you!