There's more to this book than first meets the eye--or foot! On one level, it's a simple rhyming story about feet on the beach ("Scrunch feet, squash feet / squish feet, splash feet..."). But on every page we also find several "foot notes" that provide information about marine biology and each of these is cleverly related to the human feet described in the rhyming story. The footnote accompanying "squash feet," for example, tells us that the air bladder on sargassum seaweed pops when stepped on. Lynne Reiser's expert design holds it all together and makes it easy to read in several different ways. All in all, a remarkable feat! (Ages 3-8)