A Logo is a design symbolizing ones organization. It is a design that is used by an organization for its letterhead, advertising material, and signs as an emblem by which the organization can easily be recognized, also called logotype. Logotype is a graphic representation or symbol of a company name, trademark, abbreviation, etc., often uniquely designed for ready recognition.
You may also think of a Logo as a simple visual mark to identify your company product or service. There are different types of signs and emblems easily recognized and associated with purposes