The September 2015 issue of College & Research Libraries is now freely available online. This issue has several good data analytics articles about libraries.
Forrest E. Link, Yuji Tosaka, and Cathy Weng. “Mining and Analyzing Circulation and ILL Data for Informed Collection Development.” Abstract | Full Text (PDF).
Kirsten Kinsley, Rachel Besara, Abby Scheel, Gloria Colvin, Jessica Evans Brady, and Melissa Burel. “Graduate Conversations: Assessing the Space Needs of Graduate Students.” Abstract | Full Text (PDF).
Francine May and Alice Swabey. “Using and Experiencing the Academic Library: A Multisite Observational Study of Space and Place.” Abstract | Full Text (PDF).