Module 12: Preserving Digital Objects in the Trends in Archives Practice series explores concepts of digital preservation in the archival context, focusing on standards and metadata required to make digital objects accessible and understandable over time.
Module 13: Digital Preservation Storage provides an introduction to digital storage best practices for long-term preservation, including terminology, hardware, and configurations.
A really helpful primer for digital preservation. I read this for a course for my MLS degree. I didn't have any formal digital preservation training before the course, and this book served as a great introduction.