Shop the 15% Off Nonfiction Sale at Book Outlet! Valid 4/22-5/4. *Offer for 15% off nonfiction books valid on the Book Outlet website from Tuesday, April 22 at at 9:00am EDT until Monday, May 5 at 11:00am EDT. Valid on book products only, prices as marked. Excludes stationery and gifts, Discount Aisle (markdown) items and kids’ books. Limit one (1) discount per transaction. Not valid on past purchases, shipping, or tax. No cash back. No price adjustments and no price matching. No rain checks or dealers permitted. While quantities last. Cannot be combined with any other offers except loyalty rewards and select coupons. Excludes purchases of gift cards.