Some of the key guidelines are:
- avoid passive voice
- avoid long sentences with dependent clauses
- avoid jargon and non-literal phrases
- avoid excessive formality
- Try to expand acronyms (e.g. GA) and explain unfamiliar jargon the first time you use them
- If you are explaining a procedure, try to set it out in small steps in the same order as the person will need to carry out the procedure.
- Use numbers not words - it's better to use "23" than "twenty-three" as it stands out more