Letterhead Template Minimal Design – Letterhead templates might be difficult to use, however there are some tips that can help make your job simpler. Let’s first look at the various letterhead formats. There are two major types of format for letters, the single-line type, and the double-line format. Let’s discuss the differences between the two types before getting to the core idea behind the letterhead templates. Your corporate letterhead templates will likely have your company’s name, your logo as well as a description of your company’s name, and your contact details.