Agnieszka Biskup is a science writer and editor based in Chicago. She is a former editor for the science section of the Boston Globe as well as the children's science magazine Muse. In addition to children's books, she has also written many articles for newspapers, magazines, and websites. Her books have received awards from Learning magazine, the Association of Educational Publishers, and the Society of School Librarians International. Her book Football: How It Works (Capstone Press, 2010) was a Junior Library Guild selection. As a kid, Carlos Aon wanted to be an inventor and illustrator, and as an adult he believes both passions have merged into one career in some way. He likes to draw everything, mostly faces and scenery, and he also enjoys planning and looking for new technical challenges. Sometimes he enjoys adding little details to give life to an illustration (perhaps a new color palate or creating different tweaks without losing his identity as an illustrator). Carlos is an electronic technician and a graphic and web designer.