Witches

The Thief of Always - Clive Barker The Lion, the Witch and the Wardrobe - C.S. Lewis Which Witch? - Eva Ibbotson The Burning Time - Kathryn Lasky Witch Child - Celia Rees The Witch of Blackbird Pond - Elizabeth George Speare The Sacrifice - Kathleen Benner Duble A Break with Charity - Ann Rinaldi Some books with ANASTASIA-APPROVED! witches in them:
 * Witches**
 *  The Headless Cupid by Zilpha Keatley Snyder (1973). One of my favorite YA books EVER, and not just because of Amanda-the-maybe-witch.
 *  Andromeda Klein by Frank Portman (2009). Although maybe Andromeda would be considered more of an occultist than a witch.
 *  The Letter, The Witch and the Ring by John Bellairs (1976). Also any of his Lewis Barnavelt books, which have really great characters, creepy storylines, and excellent writing.
 *  The Witches by Roald Dahl (1983). The movie is really good, too: Angelica Huston is the witch queen!
 * Anything Diana Wynne Jones does. Obviously.
 *  Her Wiccan, Wiccan Ways by Traci Hall (2008), aka the one that does Wicca-as-fiction right.
 * Phyllis Reynolds Naylor’s Witch series (1980-2005?). Seriously spooky– I think it actually gave me nightmares when I was younger.
 * The Harry Potter series by JK Rowling. Duh.
 * Terry Pratchett’s Discworld series has some fun witches in it, including Equal Rites (1987).
 *  Good Omens by Neil Gaiman and Terry Pratchett (1990). Agnes Nutter!
 *  Stardust by Neil Gaiman (1999) has some scary witch sisters in it.
 *  The Wonderful Wizard of Oz by L Frank Baum (1900). Heh.