The Unofficial Harry Potter Spellbook: The Wand Chooses the Wizard
Alistair Grim's Odditorium
Harry Potter - The Ultimate Book of Facts
Short Stories from Hogwarts of Power, Politics and Pesky Poltergeists (Kindle Single) (Pottermore Presents)
Short Stories from Hogwarts of Heroism, Hardship and Dangerous Hobbies (Kindle Single) (Pottermore Presents)
Hogwarts: An Incomplete and Unreliable Guide (Kindle Single) (Pottermore Presents)
101 Amazing Harry Potter Facts
Dragon's Egg
The Magical Worlds of Harry Potter (revised edition)
The Unofficial Harry Potter Insults Handbook: 101 Comebacks for the Slytherin in Your Life