The Unofficial Ultimate Harry Potter Spellbook: A complete reference guide to every spell in the realm of wizards and witches

The Unofficial Ultimate Harry Potter Spellbook: A complete reference guide to every spell in the realm of wizards and witches (The Unofficial Harry Potter Reference Library)

The Ultimate Wizarding World Guide to Magical Studies: A comprehensive exploration of Hogwarts's classes and curriculum (The Unofficial Harry Potter Reference Library)

The Unofficial Harry Potter Hogwarts Handbook: MuggleNet's complete guide to the most famous school for wizards and witches (The Unofficial Harry Potter Reference Library)