Library Technology Reports, January 2018 (54:1) As the world of information access has pivoted from physical goods to digital screens, the ways that libraries measure themselves have changed. For years, measurements such as door counts, circulation tracking, and material tracking have been used to evaluate library building usage. With new advances in sensor technology, artificial intelligence and machine learning, computer vision, and more, we are now beginning to be able to monitor spaces in ways that were previously unthinkable. In Library Technology Reports (vol. 54, no. 1), "Library...