Highest circulating book in a Connecticut school library

In November 2013, I spoke at Kings Highway Elementary School in Westport, CT—my home state. A month later, librarian Kate Byrnes kindly wrote to tell me that Bill the Boy Wonder: The Secret Co-Creator of Batman was number one (highest circulating) in the online catalog:

Not pictured: Boys of Steel: The Creators of Superman...which was number three.

It would be funny if a Wonder Woman or Spider-Man book were number two. Superhero sandwich.