The Library of Congress Network Development and MARC Standards Office has released Understanding PREMIS.
Here's an excerpt:
This guide is a relatively brief overview of the PREMIS preservation metadata standard. It will not give you enough information to implement PREMIS, but it will give you some idea of what PREMIS is all about. For many readers, this will be enough. For those who do need to master the PREMIS Data Dictionary for Preservation Metadata, this guide may serve as a gentle introduction that makes the larger document feel more familiar.
