In this article, we explain what an enclosure is and how to cite one, and we provide an example of an enclosure in a business letter. In this tipsheet, you'll learn about key components and strategies that make the biggest difference when writing a cover letter for an employer.When size, weight, or other factors prevent sending an enclosure with a letter, send it separately and type "(sep cover)" after the enclosure's description. Add an enclosure notation after your signature at the end of the letter, and abbreviate it with "Enc." or "Encl. The document discusses proper business letter style and formatting, advising writers to use a natural tone and avoid stilted language. In this guidebook, you will learn the ins and outs of writing resumes, CVs and cover letters. You will also find a reference list of action verbs you can. Use the same careful writing, editing and reviewing techniques with all the letters and emails you send.