Why Do Muggles Do That? An Introduction to the Fascinating World of Muggles for Young Wizards and Witches is a book concerning Muggles, written for a magical reader. It is carried by Boxley's Books in the Goblin Market of Chicago, where Constance and Forbearance Pritchard buy a copy in the summer of 2008 for their seventh-grade Muggle Studies elective at Charmbridge Academy.