Just noticed this Inform 7 Cheat Sheet designed by Mark-Oliver Reiser. It’s actually a few sheets long, but it covers an awful lot of ground. The front page presents a minimal primer on the language’s syntax and the standard library’s class tree, and from there it manages to compress most every major point of Writing with Inform (the IDE’s built-in documentation) down to four pages.
The effect unavoidably resembles a progammer’s complement to the world-famous IF players’ reference-on-a-postcard, and that is not a bad comparison to invite. If you’re planning on sweating over hot interactive fiction compiler this summer (and I can think of at least one reason why you might be), this guide seems well worth the price of five blank pages and a staple.