Here are a few books that I think you will find helpful.
DRAWING DOWN THE MOON
by Margot Adler
WHAT WITCHES DO
by Stewart Farrar
WHAT IS WICCA
by Vivian Crowley
WICCA, A GUIDE FOR THE SOLITARY PRACTITIONER
by Scott Cunningham
LIVING WICCA
by Scott Cunningham
BUCKLAND'S COMPLETE BOOK OF WITCHCRAFT
by Raymond Buckland
TO RIDE A SILVER BROOMSTICK
by Silver RavenWolf
TO STIR A MAGICK CAULDRON
by Silver RavenWolf
SPIRAL DANCE
by Starhawk
I also suggest reading anything by Scott Cunningham. His writings are my favorites. Don't just stop at these books, though. Look at you local bookstore for more books on Wicca. The important thing is not to just trust one writer or teacher as an almighty source of knowledge on Wicca or Paganism. You need to learn to trust and develop your own feelings and beliefs, and listen to nature itself as an inspiration and teacher. Use books as a guide, not a law.