From publisher blurb:
Organize your roleplaying adventure ideas! The ‘Imaginarium’ is a system-neutral, old-school 5.5x8.5” booklet with tools to help you run well organized, dynamic RPG games.
It features an idea log used to plan game sessions. Blank dungeons are ready to fill in with your ideas. Encounter worksheets provide tools to help you create tactically interesting maps for combat scenes. There are also campaign worksheets and adventure design checklists to help you craft on-the-fly game sessions as well as help you plan between games for adventures which incorporate player’s backgrounds and secrets.
Use the ‘Imaginarium’ alongside any fantasy roleplaying game to enhance and create roleplaying adventures.