This presentation is a short introduction to preservation metadata and PREMIS, and involves a practical exercise to show how information already being collected by digital repositories can be described by entries in the PREMIS Data Dictionary. It was given as part of module 3 of a 5-module course on digital preservation tools for repository managers, presented by the JISC KeepIt project. For more on this and other presentations in this course look for the tag 'KeepIt course' in the project blog http://blogs.ecs.soton.ac.uk/keepit/