Reza Tehrani, 31, offensive security researcher who writes sonnets about vulnerabilities he discovers during penetration tests. He has published fourteen sonnets in a small literary magazine under a pseudonym and none of his security colleagues know he writes poetry. He considers the two practices related: both require finding where a system's assumptions don't hold. He is better at security than poetry and better at poetry than he admits.

Eleanor Briggs, 58, museum guard at the Frick Collection in New York. She has worked the same three rooms for eleven years by choice. She has memorized every painting in those rooms at a level that allows her to notice changes in how visitors respond to them by season and by time of day. She keeps an informal record. She has never been asked about this by her supervisors. She considers herself the most informed person in the building on several narrow topics.