This article is from the Wicca FAQ, by firstname.lastname@example.org (Rain of Teleport) with numerous contributions by others.
Sticking around and reading this group is one way, as are books and local
contacts. Below is a list of initial resources, beginning with the books
most frequently recommended, two historical books and a few well-respected
authors. At least a few of these should be available through your local
library, and most are easily ordered through any local bookstore. All
contain bibliographies and pointers towards other material.