An illustration of an actual-size footprint for different animals from around the world is located on a double-page spread.  Short rhymes give clues to the animal that left the track.  The answer is found on the next page along with additional facts about the animal.  The clues are usually enough to identify the animal although the identity of the true animal may still be a revelation.  Posada’s images are detailed and colorful.  She uses collage with watercolor to capture attention.  This is an interesting mix of poetry and nonfiction facts.  Questions to ask when trying to identify an animal track are suggested in the back with websites and a bibliography for further reading.  Recommended addition to elementary home or school libraries.