If you have been facing job rejections for an extensive period of time, No worries It is a phase that shall pass on. Just a bit of customization in the cover letter and resumes can make a major difference in the selection of a candidate for specific job positions. The cover letter can be as long as two-three pages in certain countries and in some there's no need to even attach the cover letter. But the best cover letter writing services company always advises people to attach a cover letter with the resume as it gives a quick and instant impact to the hiring managers and the selection committee of the company about the person's professional life and past educational experiences. The two-three pages long cover letter should always be proofread for any typos, grammatical mistakes, and spelling errors. As the poor design and content of the cover letter can leave a terrible impact on the selection committee of the company about the individual resulting in the rejection of that individual for the specified job position.