Books on Wicca that I particularly recommend are:
" Wicca: A Year and a Day " by Timothy Roderick
" Wicca " by Thea Sabin
" Wicca: Old Religion for a New Age " by Vivienne Crowley
" The Witch's God " and " The Witch's Goddess " by Janet and Stewart Farrar
Also, on the topic of Wicca, you should take a look at the pinned posts in the Wicca Forum on this Site.
And for books to help in learning magic, I'd suggest:
" Modern Magick " by Donald Michael Kraig
" Spells and How They Work " by Janet and Stewart Farrar
" The Veil's Edge " by Willow Polson
