Harry Potter: Knitting Magic: The Official Guide to Creating Original Knits Inspired By the Harry Potter Films by Tanis Gray

Not only does this book have lovely patterns, but each has an explanation about which movie it is based on and where you can see what it is based on in the movie with photos from the movie as well. The patterns are well written and there are instructions in the back of the book that explain some of the more difficult bits. This book is a must-have for Harry Potter loving knitters!