Publication Date

Fall 2013

Document Type



Finance and Financial Management | Library and Information Science | Technology and Innovation


Published in The Christian Librarian, Volume 56, Issue 2 (Fall 2013). Permission has been granted by The Christian Librarian ( to upload this contribution to Liberty University’s scholarly repository.


In the Spring of 2010, the Liberty University Jerry Falwell Library began a pilot patron-driven acquisition program with the e-book aggregator ebrary. In the Fall of 2012, the program had been active for two years and the librarians sought to optimize the program in the form of selecting more titles which are used. This paper describes the formula that the librarians used to achieve optimization in the PDA program. Also described is the workflow involved with acquisitions and cataloging before and after the purchases are made.