A cover letter introduces you and your resume to the potential employer. It's your chance to persuade someone to find out more about you. When writing a cover letter to accompany your resume, try a three-part format.

• The opening states why you are writing - what position you are applying for and how you heard about the job.
• The main body describes your qualifications for the position. Try not to restate what is listed on your resume.  Rather, identify your strengths and the benefits the employer would gain by hiring you. This is where you may also want to include examples of your accomplishments while you were out of the work force. Mention refresher courses you have taken or how you have kept abreast of developments in your field.  
• The closing refers the employer to your resume and states your willingness to provide more information by letter or in person. Ask for an interview and indicate how you can be reached. Then, thank the employer for his or her time and consideration.

Always check for typos and grammatical errors on your resume and cover letter.  Never lie on your resume or cover letter; exaggerating or embellishing your qualifications may help you get an interview, but the truth will catch up to you eventually.