In her first book for young readers, personal-finance expert Chatzky offers straight talk on all things related to money—where it came from, how it’s made, how to earn it and how to save it, everything from gross domestic product to gross viruses on paper money. Having spent three months traveling the country and talking with kids, the author presents questions and answers in a volume attractively designed in a kid-friendly manner, with plenty of illustrations, charts, lists and sidebars for fun facts and kids’ questions. One thing not learned on the trip, apparently, was not to take all middle-school students’ answers at face value, as readers will see wise-guy responses, illogical explanations and self-centered comments mixed in with the mostly thoughtful and sincere questions and statements. Still, the clear and conversational text, coupled with the inviting format, will appeal to young readers, who should enjoy learning about a subject important to them. (appendices, map, glossary, web resources, index) (Nonfiction. 10-14)