Another tip: when writing communication (like email), start with TL;DR. Explain quickly who should read it and why. Start with the important stuff first, follow up with details and less important stuff.
I usually write an email in the order that I am thinking on it. First comes a paragraph or two of the details of the problem, then concluding with a sentence saying what I would like the recipient to do.
Every time, I then go back and move that concluding sentence to the top. That way, the email starts with what I would like to happen, and if the recipient doesn't have any objections, the remainder of the email can be skipped entirely.
Without actually writing 'TL;DR' though. A well written email, letter or anything really, usually starts with the gist of the message. "Don't waste people's time" by fluffing up your texts.
(Unless it's a novel, but then the goal is to build up a story to an apotheosis)
In US schoolsg english classes teach writing as an inverted pyramid where you give details (pyramid base) and end with a conclusion (pyramid point). In contrast, technical writing and journalism teach an inverted pyramid where you start with the conclusion (point) and fill out the details (base).
Think of The Atlantic long form articles contrasted with traditional newspaper frontpage stories. The Atlantic is telling a story to build context before getting to what you wait. A newspaper article tells you who was murdered with what and where and then builds up more context.
