Sure, there are plenty of other books about scats and tracks. My goal was to make one that was fun for kids. They'll enjoy reading about Michael and Emily's vacation and get all kinds of fascinating trivia from the "Straight Poop" sidebars scattered throughout the book, and they'll learn while they do it! Eli and I did our best to make it fun, and the team of rangers and naturalists that proofread the book kept it accurate. If your children ever wondered what critter left that pile of droppings, then they need a copy of "Who Pooped in the Park?"