One must understand that out of resume and cover letter, a cover letter is far more important than the resume. In a resume, you can just mention what are your qualifications, experiences and achievements. However, a cover letter lets you be creative in your approach. It allows you to persuade and convince the employer as to why you are the best for the job. If you are able to sell yourself to the employer in the cover letter, they might not even open your resume and call you for the interview. Such is the power of devoting your time to write a good quality and expert cover letter.
Another important thing that should be kept in mind is that you should format both the resume and cover letter in a similar manner. There should be consistency in the fonts and the size of the fonts that you use. It shows your professionalism and also how particular you are about even small things. You need to use professional paper for both resume and cover letter while sending them out. You should never send photocopies of resume and cover letter to the employer. If you can follow these simple tips while sending out your resume and cover letter, be sure to be flooded with phone calls for interviews.