Speaking of map monsters, here’s a piece in the Public Domain Review from 2014 that I only encountered this month. It’s a look at the sea serpents found in Olaus Magnus’s 1539 Carta Marina: “The northern seas of the marine and terrestrial map teem with fantastic sea monsters either drawn or approved by Olaus,” writes the author—none other than Joseph Nigg, who literally wrote the book on the Carta Marina’s sea monsters. [WMS]

Previously: Sea Monsters and the Carta Marina.