Harry Potter’s World: Renaissance, Science, Magic and Medicine is the perfect online exhibition to get you ready for Harry Potter and the Deathly Hallows-Part 2
This site from the National Library of Medicine explores the roots of many of the Harry Potter themes based in the Renaissance tradition. See how the potions, herbs, monsters and other magic draw from the history of science.
If that does not quench your thirst for Potter, see all the Harry Potter material we have at the library. We have DVDs, audiobooks, all the books (and even books about the books!)