Gr 2–5—This series follows two fictional entrepreneurs, Tomás and Mia, as they learn about money through their successful lemonade stand. The information is solid and the texts are clearly written. The books are presented as separate stories, but a complete picture is formed when they are read as a set. Most of the information is imparted through dialogue between Tomás, Mia, and Tomás's Uncle Tito, with other characters playing minor roles. Additional facts displayed in dollar-bill text boxes fill in the gaps. For example, "The Federal Deposit Insurance Corporation, or FDIC, is an insurance program for banks." Illustrations are pleasing, and readers will enjoy the informal approach. These are top-notch resources for the classroom and great reads for students wanting to start their own lemonade stands.