Approaches to impact evaluation in academic libraries - A review of a new ISO standard

This article is a review and summary of the ISO Standard 16439, Information and Documentation: Methods and Procedures for Assessing the Impact of Libraries which gathers together recent thinking and approaches to the difficult question of seeking and finding evidence that an academic library indeed makes a tangible difference to its users. Both librarians and library administrators who are grappling with the increasingly imperative need to demonstrate the value of their services will find this article of interest.