Accountant Letterhead Examples – Letterhead templates can be difficult to make use of, but there are some suggestions that will make the process more simple. The first step is to look over the different formats of letterheads. There are two major types of letterhead format, one-line and the double-line form. We’ll discuss the differences among the two types before going to the basic concept of templates for letterheads. The letterheads you use for your business likely include your company’s name, your logo an overview of your company’s services, and contact information.