The Circle Within by Dianne Sylvan (2003, Paperback)

The back cover describes this book as a "move beyond the basic of Wicca." Although Ms. Sylvan does not define the "Wicca 101 terms" she uses, this book can and should be read by any Wiccan of ANY skill level! Ms. Sylvan's tone is refreshingly honest and straight-forward. She certainly cannot be considered a "fluffy bunny pagan." Her exercises are innovative and so enjoyable that you won't mind doing them more then once, unlike other authors' exercises. Her "Three Things to Think On" at the end of each chapter takes reading about Wicca to a truly interactive level. Certainly one of the best books about Wicca I have ever read!