19-03-2013, 06:44 AM
As Niall and Rowell say, your covering letter should be about your suitability for the job, if possible include some relevant extra information that's not on your CV, it also helps you because it'll give them something to talk about in the interview. For example, if you were applying to be a teacher and you're also a scout leader - something that wouldn't necessarily be on your CV, but is important to the job.