I downloaded this because I am a fan of the TV series. It is nicely written, and goes into plenty of details about the different characters of the show, human or otherwise, and has a lot of illustrations. I do have a few criticisms regarding the book. I had to totally skip past the pages of exorcism rites (because they are in Latin, which I can't read), some of the pages list cases and dates which is hard to concentrate on, and finally some of the book is in old English/American, for example 'Ye and olde etc. That said, this is really me just nit-picking. For me, I want to re-read the entries, the illustrations. Obviously, if you've never heard of, or seen Supernatural, it probably won't be your cup of tea, but for any fan interested in the back story, it's well worth a look.