Library of Congress TGM
Note: Briefly mentioned as a reference system.
The Thesaurus of Graphic Materials at the Library of Congress. Dave Kaminski suggested running the PKAI Course wiki against the TGM to find standardized entry points:
Dave: "You might be able to say, hey, look at my guide, and run it against the TGM at the Library of Congress. And tell me if you can gain any insight from the structural build of that."
Mentioned by: Dave Kaminski
Context: Suggesting structured vocabularies for course materials