A very interesting book, "How To Meet and Work with Spirit Guides" by Ted Andrews discusses many mythical beings and unseen entities we have come to believe in over thousands of years. Such things as angels, guardian angels, and spirit guides, gnomes, animal spirits,nature spirits, fairies, etc. are comprised into this reading, giving a basic understanding of each and how they function. The author explores ways to communicate with these through meditation, crystals, group meetings, and so on. A bit out there for me but I have never participated in trying to contact anyone from beyond. An interesting read regardless if you are a believer or a skeptic.