A common assumption about communicating a message is thinking that it is understood.
Many factors affect the effectiveness a message including the medium used to communicate, the media used to deliver it, the tone of it, the intended audience, and avenues of feedback.
This advice will most certainly help at work and otherwise in all communications. Learn about:

Simplification
Structure
Repetition
Responsibility
Two Way
Empathy
Sara Sabin. Ex-chartered accountant, entrepreneur, transformative coach, writer & speaker. Member of the Entrepreneur Magazine Leadership Network. https://muckrack.com/sara-sabin
***** S&E *****