"Pebbles and the Biggest Number" by Joey Benun is an adorable children's story full of educational opportunities for numerous age groups and education levels. A curious little butterfly's quest to learn all about numbers also ventures into environmental science, anatomy, vocabulary, and meteorology. During Pebbles the Butterfly's investigation of how big a number can get, he visits different climates, ecosystems, and animals as he learns about measurements, temperatures, and numeric values. He faces climate challenges from deserts to the arctic, as well as difficult weather situations such as extreme heat and hurricanes.