Your cover letter serves as your first writing sample and an opportunity to communicate your enthusiasm and professional strengths to a prospective employer. A successful cover letter will capture the attention of the reader in a professional manner, direct the reader to the strongest points of your resume, and persuade the reader to invite you for an interview. Like your resume, your cover letter must be free of typographical and grammatical errors.
Prepare your cover letter using the same "letterhead" as used for your resume, and address it to a specific individual whenever possible. Avoid addressing a letter "to whom it may concern." Be sure that the recipient's name, title and address are correct. The body of your cover letter should consist of three main sections (but should not be labeled as such):
Introduction
Begin with a brief description of who you are, the purpose of the letter, and the name of the position for which you are applying. Refer to your attached or enclosed resume (and any other materials you included). Tell how you learned about the position or the employer. If someone has referred you, mention that person by name.
Qualifications & Interests
This section may be one or two paragraphs in length. This section should emphasize your work experiences that are most relevant to the position. Avoid clichés and rehashing your resume. Instead, expand on your resume with a focus on how your skills meet the employer's needs. Demonstrate that you have done your research and understand the organization.
Conclusion
Briefly reiterate your interest in the position and passion for the application of your skills. Thank them for their consideration of your candidacy, and let them know that they should feel free to contact you if they require additional information.