Think of a lettermark logo as a monogram or an anagram for your business. A lettermark is composed of just text, like the wordmark, but the logo depends on initials to represent the brand. HP is an example of a monogram lettermark logo — it uses the initial letters of the company’s full name, Hewlett-Packard, to create the logo. Another example of a lettermark logo is International Business Machines, better known as IBM. FedEx represents an anagram lettermark logo, making use of the first few letters of each word of the corporate name — Federal Express.
Lettermarks are perfect if your full company name is a mouthful, and the initials look better than your full company name. However, the drawback is that it can leave consumers guessing what it stands for or what your company does.