Based on their career test results, jobseekers may feel like their skill set makes them the perfect match for a specific role. However, they could hurt their chances of landing this job if they choose to apply without submitting a cover letter, even if the employer does not explicitly ask for one.

According to CareerBuilder, cover letters provide job applicants with an opportunity to tell prospective employers about themselves in their own words. Much like an interview, this document represents one more chance to point out certain qualities that may be of use to companies.

As cover letters can sometimes mean the difference between job search success and failure, individuals should try to avoid making common mistakes when putting this document together. For instance, CBS MoneyWatch recently suggested that jobseekers be careful how they come across in their writing. If their words make them sound arrogant, it is unlikely employers will want to work with them on a daily basis.

At the same time, applicants who submit a cover letter filled with spelling and grammar mistakes are not doing themselves any favors.

Most importantly, jobseekers need to realize that including a cover letter with their resume is a necessity. Some applicants may think this document is optional, but according to the news outlet, this is simply not true. Without a cover letter, resumes are destined for the recycling bin.