Gratz, Alan. Samurai shortstop, c2006: t.p. (Alan Gratz) data view (b. Jan. 27, 1972)

Gratz, Alan. Two degrees [SR]: cover frame (Alan Gratz)

Alan Gratz website, Oct. 3, 2022 (Alan Gratz; author of seventeen novels for young readers, including Ground Zero, Refugee, Allies, Grenade, Prisoner B-3087, Projekt 1065, Ban This Book, Two Degrees, Samurai Shortstop; lives in Asheville, North Carolina)