All adventure books from the D&D fifth edition Adventure modules are pre-made adventures that the Dungeon Master can run. These books contain all the information necessary to play a specific adventure.
All campaign guides from the D&D fifth edition Campaign guides are books that provide information about a world for Dungeon Masters to create their own adventure. Typically do not contain an adventure of their own.
All core and supplemental books from the D&D fifth edition The Player’s Handbook, the Dungeon Master’s Guide, and the Monster Manual are the main D&D rulebooks. Basically the basic books you need to run the game. Supplements are books that add new things in the game such as spells, monsters, or subclasses.
