Interesting, if simplistic, insight into the various myths, legends and languages used as reference by JK Rowling in the Harry Potter series. The writing style is obviously aimed at a younger audience (tween to younger teen), but the research is solid. I like that I was able to get my hands on the expanded version, but it's a little annoying that the main text covers books 1-5, while books 6 and 7 are sort of tacked on at the end. I wish some of the chapters, like the one on the use of Latin for spell names had been expanded to include spells from books 6 and 7 (not that you can't figure out the Latin roots, but it's a nice little place for a quick reference). This book is best utilized as a reference guide, although you can read it straight through like I did and still enjoy it. Enjoyable and worth the $4 I spent on it at the used book store.