I am a regular at Half Price books on Cactus and Paradise Village Parkway. This is a great store, and I rarely leave it empty handed. As home schooling Mom of a high school student, I rely on good places for used books. Half Priced books is my number one place to shop for literature, science, and history (we follow a classical curriculum, so we don't read from textbooks). The staff is friendly and knowledgeable about their books, will offer to look something up for you or show you where it might be located, and will generally offer polite conversation. Don't expect to be friends with them (the only negative), as most do their work, and don't engage in a lot of chit-chat about the books. Overall, great prices especially on classical literature and history. Good for home schoolers needing unabridged copies of books.