The Deluxe Campaign Journal can be used by...
Game Masters - Planning their world and adventures for their characters. Mapping the wide wilderness and the features that will draw the characters into a world of adventure. Then, you can map the specific sites of adventures.
Players - Keep track of the world that you're exploring. The dangers of the wilderness, taking notes of the features, people and adventure trails. Then mapping the sites you discover whilst making notes of the details, clues, and the creatures you kill.