Invisible Animals Magic Picture Book by Anna Pomaska Rub 16 blank spaces to find out what animal is world's tallest, what creature builds dams, and more.
Invisible Insects Magic Picture Book by Pat Stewart Bring invisible insects out of hiding with the touch of a pencil and learn fascinating facts about fireflies, termites, grasshoppers, bumblebees, and 12 other insects.
Invisible Old MacDonald's Farm Magic Picture Book by Becky Radtke Sixteen animals that go "oink, oink," "snort, snort," "cock-a-doodle-doo," and more appear in the farmer's barnyard when the blank spaces are rubbed with a pencil.