Book excerpt: This book has not been authorized by J.K. Rowling, Warner Bros., or anyone associated with the Harry Potter books or movies. From Azkaban to zombies, every aspect of the enthralling universe in J. K. Rowling's Harry Potter series is explained, expanded, and celebrated in this literary guidebook for Muggles (humans who are often not aware of the magical world that witches and wizards inhabit). Characters, creatures, locations, and objects in the series are explored, including the magicians' school Hogwarts, the sport of Quidditch, and the practitioners of the dark arts. Enthusiasts of the series will find supplementary information on the historical roots of the symbolism and mythology used in the series, how the books and movies compare, and creative ideas for throwing a Harry Potter–themed party.