I believe the Congressional Research Service (CRS), which is a research arm of the Library of Congress, publishes an updated version of this document for each Congress.  While the primary audience is Congressional representatives, it provides a good overview of disaster response fundamentals and the relationship between the federal and state/territorial/tribal governments which can be a good reference for many, including practitioners, students, state and local officials, and members of the media.

Give it a look and pass it on to others.

https://www.hsdl.org/?abstract&did=804217

– TR