The library partnered with Ebrary for its Patron-Driven Acquisition (PDA) program, which allows users to browse a preselected set of e-books and purchase a book on demand based on usage without a patron’s knowledge. Triggers for purchase include ten minutes of browsing, unique interactions, any copying or printing. A total of 688 e-books were purchased, across all disciplines, from publishers such as McGraw Hill, Wiley, Elsevier, as well as a wide selection of university presses.