Some exclusions. Online use coupon code BSL7210X. One per person. The coupon also works at Borders Express and Waldenbooks.
You must belong to their free Borders Rewards program to use the coupon. I highly recommend joining because it is free and they pretty much send you one coupon a week.
Caveats: cannot be combined with any other offer, excludes previous purchases, special orders, gift cards, newspapers, magazines, comics, coupon books, eBooks, digital downloads, video games, vinyl LPs, self-publishing programs, tax software, Smartbox products, Rosetta Stone® software, shipping, and all electronics.