Opal and Stew wonder if a turtle and tortoise are the same thing, so they go to the public library where the librarian shows them how to find information online.
"Come with Opal Owl and Stew Rabbit as they learn how books are organized by fiction and nonfiction, how to use call numbers and the Dewey Decimal System, and how to search using a library catalog"--Amazon.
Stew visits the public library for the first time and is overwhelmed by how large it is until he meets Opal, who shows him where everything is and teaches him how the library works.
