Make your signature stands out with a creative card that showcases your personality and matches your line of work. Start with an email signature template on.Briefly specify why the document contains two signatures. You can use the subsequent paragraphs to provide additional details about your ideas. A cover letter is a document that introduces you to a prospective employer. After you've filled out the forms and signed the Answer, make 3 copies of the form. What details do you include in the signature of a letter?