I create and sell business training presentations that are each 5 minutes or less. Textbook based knowledge applied to day-to-day work problems. I am a business professor that had to work professionally as I went to school to earn my degree. And I believe if it can't be applied to a person's daily job, then what good is it. I am what they call a scholar-practitioner. Everything I present is broken down into everyday language, videos are quick and to the point, give people what they need, something they can use right away. Need help, watch a training video, get back to work.
For example: A coworker told me that he was having trouble getting people to read his emails and answer the questions he needed answered. People skim the email, don't read it thoroughly, and then respond without answering his questions. So I put together a presentation to help him in 5 minutes. 1) The majority of people read at about an 8th grade level. When we were in the 8th grade, we structured our sentences that lead with the noun and verb. So I told him to start writing his sentences with less fluff and lead off with the noun and verb, which keeps the focal point on the subject. 2) Lead each email with the direct question needing answered. Leave all the background and follow up information for later. People are used to simply skimming an email, not reading completely through it. So start with the direct question. The call to action, that way if they quit reading, they have the question. 3) Direct, don't beg. Leave off "please" because it implies the reader has a choice. Don't ask them please answer this question. Just pose the question directly. You should build your relationships with people in other ways, so there is no need to say please do this or please answer this. Just direct them to answer.
So, there: 3 practices in less than 5 minutes to help a professional write their emails in such a way to get better results. Better emails, better results. And it works. I gave a couple of examples, and he started doing it. And it works.