ADA PALMER is a professor in the history department of the University of Chicago, specializing in Renaissance history and the history of ideas. Harvard University Press published her first nonfiction book, Reading Lucretius in the Renaissance, in 2014. She is also a composer of folk- and Renaissance-tinged a cappella music, most of which she performs with the group Sassafrass. Her personal site is at adapalmer.com. She also writes about history for a popular audience at exurbe.com and about SF- and fantasy-related matters at Tor.com, or sign up for email updates here.