A compendium folder is basically a binder with a zipper which allows for books and documents to be slipped in.
The collective noun is a compendium of books.
Compendium Books was created in 1968.
Compendium Books ended in 2000.
Classic Compendium was created in 2005.
Classic Compendium happened in 2005.
Rules Compendium was created in 2007.
Monstrous Compendium was created in 1989.
For my birthday I was given a compendium of magical tricks.
Compendium Maleficarum has 345 pages.
Spell Compendium has 288 pages.
Spell Compendium was created in 2005-12.
The Compendium Archive was created on 2010-03-20.