books.google.ca - About 40 percent of the books academic libraries purchase in traditional ways never circulate and another 40 percent circulate fewer than three times. By contrast, patron-driven acquisition allows a library to borrow or buy books only when a patron needs them. In a typical workflow, the library imports...http://books.google.ca/books/about/Patron_Driven_Acquisitions.html?id=XSNiefyQ_ksC&utm_source=gb-gplus-sharePatron-Driven Acquisitions
