Matthew Gavin Frank’s latest nonfiction book, Flight of the Diamond Smugglers is about, among other things, the ways in which carrier pigeons are used by diamond smuggling rings.  He is also the author of the nonfiction books The Mad Feast: An Ecstatic Tour Through America’s Food, Preparing the Ghost: An Essay Concerning the Giant Squid and Its First Photographer, Pot Farm, and Barolo; and three books of poetry.