We buy from the U.K., France, Israel and the Far East," said Bob Crabb of the University of Minnesota Bookstores. "As long as the publishers are offering books at less than half the price that's available here, we'll take advantage of it. It's great for students. For publishers, the marginal costs of printing a few extra books and selling them overseas are very, very low. But I would guess that shortly, the sales here will begin eating into their U.S. sales in a serious way.