"Describes the anatomy of the human head, including organs, muscles, and the skull"--Provided by publisher. Eyes, nose, mouth you can see what's on your head. But do you know what goes on under the surface? Explore the layers of the human head to find out what really goes on behind your smile.

This interactive book can be read or listened to. Electronic reproduction. Minneapolis, MN : Picture Window Books, 2010. Online access.

The human head -- On the surface -- The next layer -- Mission control -- Always working.