First, Silver Ravenwolf, she writes some great books, and they are 
really easy to understand.  A good one, the first of hers that I read
To Ride a Silver Broomstick: New Generation Witchcraft
A great book, for beginners.  I got much of my information for this site
from this book.  I definantly recomend reading it!
Another of hers that I haven't read yet is

FOr more books by Silver Ravenwolf, go hereSilver Ravenwolf




Raymond Buckland

Edain McCoy


Cunningham's Encyclopedia of Magical Herbs