Firstly know what they are!
When to use them.
What type of language do we use in them?
(formal/informal) [Direct/indirect]
Change it for each job you apply for
Ask a friend to proof-read it to make sure it makes sense
Use key words from the job advertisement e.g. computer literacy, team player, initiative
Cover letters should be brief and to the point.
Job title and location
skills
Identify requirements
Experience needed
*Know the difference between what is a job skill and what is a requirement of the job.
Technical Sales Executive