Final answer:
Command letterhead stationery is used for formal business correspondence, employing a block format with single spacing and legible fonts. It is suitable for official communications with entities such as companies or politicians.
Step-by-step explanation:
Command letterhead stationery should be used exclusively for formal business correspondence. These types of communications are typically directed toward companies, politicians, and other formal entities when conducting official business matters. For example, when writing to a local congressman about funding for a school or when formally requesting a refund for a defective product from a company, command letterhead stationery is the appropriate medium to convey the message professionally.
When formatting a business letter, it is recommended to employ block formatting where all content is left-justified. The font should be legible, such as size 12 Times New Roman or Arial, and the letter should follow single spacing with double spacing between paragraphs without indenting the beginnings. Remember that personal communications such as emails and letters are cited only within the text as they cannot be located by other researchers. In professional settings, it's important to avoid text language and to be clear and concise. The goal is to foster clear communication and make your intentions known, which can be especially critical in formal business interactions, such as job inquiries or college application essays.