Nadja Spiegelman is the Eisner-nominated author of the Zig & Wikki series of science comics for young children. A native New Yorker, she prides herself on important subway know-how such as where to stand to get a seat and how to sleep without missing her stop. She now spends her time between Paris and Brooklyn.Sergio Garcia Sanchez is one of Spain's most celebrated experimental cartoonists. He has published more than forty-five books and his work has been translated into nine languages. He is also a professor of comics in France and Spain and currently lives in Granada with his wife and his children.