Octavo (22 cm), pp. 336. Later printing. Signed by author on title page and dated 2011, with drawing of a feather. Black boards with silver spine text. Includes bibliography and index. A few pages have been dog-eared and spine shows minor bumping. Jacket shows very light wear. Winner of multiple prizes, including the John Burroughs medal, Feathers "begins in the Jurassic and leads through the development of flight, fluff, and high fashion" (author's website). Dust jacket present.