Magicka Formularia
By S. Cheryl Richardson
 
Magicka Formularia is one of the best reference books on formulary magick.. It has its roots in Hermetics, but crosses over to Wicca and other Earth based religions. It covers the basics as well as deeper concepts of magick. I highly recomend this book to anyone who wants to build a reference library on the theory of Magick and its applications.