"Since the beginning of kids' books ... it was like: learn your alphabet, learn the colors, or learn morals, learn proper behavior," he says. But the author of the kids' classic The Stinky Cheese ...

Morals first developed among humans on the African savanna ... and is the author of several previous books for an academic audience.

"Since the beginning of kids' books ... it was like: learn your alphabet, learn the colors, or learn morals, learn proper behavior," he says. But the author of the kids' classic The Stinky Cheese ...