Tough luck Gerry. At the moment there are lots of applicants for each job so companies have to turn down the majority of people without interviews. They may not have turned you down just because of a covering letter, but things that would have put them off would have been, a lack of attention to detail in spelling or grammar, and content. The letter may not have contained the information they were looking for or the c.v. or application form may not have made enough of your experience. The best way to approach an application form is to link your experience to the tasks and qualities they are looking for. If there is no relevant space on the form, include (briefly) in the letter the reasons why you would like the job. It's important that you look at this from the employer's point of view, what they will be looking for is someone who can do the job and really wants to work for them. The other key thing is that you will fit in with their organisation and so any judgemental comments won't help - I saw a cv once with "love all dancing and would try anything except line dancing" listed under hobbies. Guess what the prospective employer's hobby was? It may well be that your application was fine, but there were others that were slightly stronger. Most employers will be happy to give you feedback on your application and this could be very useful, a friendly phone call from you (not a complaining one!) should get their helpful comments. There are some excellent books on applying for jobs both in your local library and careers centre. Your question demonstrates that you are literate, thoughtful, employable and willing to change and improve. Some employer will snap you up before too long!