You can find plenty of advice on what to include in a cover letter. It’s important to include detailed information on why you are the best qualified person for the job.
However, there’s also information that you should not include in your cover letter when you are applying for jobs.
Nina Scott, C.P.R.W. and Career Coach of Impression Resumes says “Strategy is a mistake which can often be a blind spot for job seekers.” Job seekers may think that providing certain information can help them get an interview. However, including the wrong information can hurt, rather than help, your application for employment.