[외국도서] Absolutely Everything! Revised and Expanded : A History of Earth, Dinosaurs, Rulers, Robots and Other Things too Numerous to Mention (Hardcover, Revised ed)
[외국도서] Britannica First Big Book of Why : Why can't penguins fly? Why do we brush our teeth? Why does popcorn pop? The ultimate book of answers for kids who (Hardcover)
[외국도서] Engineers Making a Difference : Inventors, Technicians, Scientists and Tech Entrepreneurs Changing the World, and How You Can Join Them (Hardcover)