Get $5 off book purchases over $15 by using promo code GIFTBOOK through 12/8/16 at Amazon.com:
Terms & Conditions
▪ To use this promotion, you must enter "GIFTBOOK" at checkout under the "Gift cards & promotional codes" section to receive $5 off any books purchase of $15 or more.
▪ This offer is valid on print books only. Excludes eBooks and Audiobooks, Book Rentals and Amazon Gift Cards.
▪ The promotion is valid for a limited time, on orders placed between December 2, 2016 at 12:01am EST and December 8, 2016 at 02:59am EST. Amazon reserves the right to modify or cancel this offer at any time.
▪ Offer only applies to products sold and shipped by Amazon.com.
▪ Limit one promotional code per customer and account.
▪ Each code may be used only once and may not be combined with other offers.
▪ The maximum benefit you may receive from this offer is $5.
▪ Offer good while supplies last.
▪ Offer is non-transferable and may not be resold.
▪ If any of the products or content related to this promotion are returned, the value of the offer will be subtracted from your return credit.
▪ This promotion may not be combined with other offers, including promotional certificates.
▪ Items must be purchased in a single order and shipped at the same speed to a single address.
▪ If you violate any of the Terms & Conditions, the promotion will be invalid.
▪ Void where prohibited.
▪ Shipping charges may apply to discounted and free promotional items.