Found in 2 comments on Hacker News
Someone · 2017-10-07 · Original thread
The book “the Mac is not a typewriter” (https://www.amazon.com/Mac-Not-Typewriter-2nd/dp/0201782634) may help get them some idea about style. It is 15 years old, targets print, and is aimed at Mac users, but that doesn’t matter that much.

(For PC users, there is “the PC is not a typewriter” (https://www.amazon.com/Pc-not-typewriter-Robin-Williams/dp/0...), but that is even older, so I’m not sure it will be more useful than the original, unless your users are using WordPerfect or Ventura Publisher)

xrt · 2013-01-15 · Original thread
Robin Williams devotes a chapter of her book, "The PC is not a Typewriter", on the subject. She concurs.

http://www.amazon.com/Pc-Not-Typewriter-Robin-Williams/dp/09...

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