A logo is a graphic mark, symbol, trademark, abbreviation, or emblem used to represent a company, product, service, or idea. A logo is typically used as a branding element and can be found on websites, social media platforms, business cards, letterheads, marketing materials, and more. Logos are usually simple and easy to remember so that they can be easily recognized by potential customers, making them an important part of any marketing or branding strategy. Professional graphic designers usually design logos.