Business letter spacing refers to the amount of space between lines of text in a business letter. The standard business letter spacing is single-spaced, with one line of space between each line of text. However, you may also use 1.5 or double spacing for a more formal or professional look.
There are several benefits to using proper business letter spacing. First, it makes your letter easier to read and understand. Second, it gives your letter a more professional appearance. Third, it can help you to save space on the page.