More and more books in the OSR have been making layout and information design a priority, in particular the “control panel” format that puts all of the relevant information from a single topic on a single page (or two page spread). It’s a term I first used on my video review of B/X essentials, but it seems to have hit a chord. Visuals often take priority, with flowcharts and diagrams replacing traditional text, in order to facilitate faster absorption of the information. I’ve put a bunch of examples below.
It got me wondering whether you could make an entire RPG in the form of cardstock handouts, somewhere between A4 and A5 sized. Player wants to play a wizard? Hand him the card with the magic rules and the card with the spell list. Going exploring on hex C12? The DM pulls out the card for that hex and places it behind the screen. Going shopping and need to see what goods are available at a high-end potion shop? Pull out that card and put it in the middle of the table.