Marc Davis is the author of several children's books and the novel Dirty Money, which was a finalist for the Private Eye Writers of America Shamus Award for best original PI paperback. He is a former commodity broker at the Chicago Board of Trade and former newspaper reporter whose local history column, Yesterday, ran for more than five years in the Chicago Tribune. A freelance journalist, his articles have been published in national print and online periodicals and on the Harvard Medical School and Johns Hopkins University consumer websites. He is also an award-winning painter and art teacher.