On: NASA Graphics Standards Manual

[yagyu]

Vaguely related, the technical writing style manual from NASA: http://hdl.handle.net/2060/19900017394

It's of course opinionated, but for anyone who is not an opinionated pro themselves, it's a great resource to learn concise, precise, and readable technical communication. (imho, of course)

[mtl_usr → yagyu]

As a non-native speaker, definitely a ressource I should read.