In this video, Nancy Odegaard and Gina Watkinson, both conservators based at the Arizona State Museum, discuss and demonstrate good and bad labeling techniques. Odegaard and Watkinson describe the contents of a well-stocked collections labeling kit, methods for applying numbers to a variety of objects, and provide an overview of unacceptable marking methods and materials. This session was part of the 2016 ATALM annual conference held in Phoenix, Arizona, on September 10-13, 2016.