Paperback books purchased from our catalogs and website may be returned for credit within 30 days of your purchase. Books must be in new, uncirculated, and resalable condition. All bound books, teachers guides, audios, DVDs, special order titles, and other products are NOT returnable unless defective. All returns must be authorized. Please contact customer service at 800-724-2616 or via our contact page to obtain return authorization. No refunds will be given.