Cover letters should be tailored specifically for the position to which you are applying. Some organizations indicated cover letters as being "optional," take it upon yourself to make them mandatory.
Bear in mind that the letters you write not only convey your interest and qualifications, but also give the employer an opportunity to observe your attentiveness to detail, spelling, grammar and the overall quality of your written communication.
The quality of your cover letter will determine the employer's first impression of you. The following are general guidelines to help you design your cover letter.