Now graph paper is readily available in office supply stores and most retail stores.
And the chief tool for setting any of these up is graph paper. The Map helps new and experienced DMs quickly describe a dungeon, lay out a town, or, in some cases, set up a temporal flowchart of actions and events. No other component of rpgs, from the earliest versions of Dungeons and Dragons to the latest Pathfinder or 13th Age releases, is more iconic or necessary to the game than The Map.