Borders book store - spend over $30 instore and receive a $10 gift voucher - could be a bargain.
But..... on my reading of that term there's plenty of room for the argument that they dont include the spend $30 get a $10 voucher promo.
If you can get these two things to work you end up with 30% off the cost of your book plus an effective 30% bonus card on your $30 purchase. Worth a look I reckon. The voucher once you have it can be used instore between the 1st and 28th of Feb.