A logo is a symbol made up of text and images that identifies a business. A good logo shows what a company does and what the brand values. Logo design is all about creating the perfect visual brand mark for a company. Depending on the type, a logo usually consists of a symbol or brandmark and a logotype, along with a tagline.
A logo is the central element of a complex identification system that must be functionally extended to all communications of an organization. Therefore, the design of logos and their incorporation into a visual identity system is one of the most difficult and important areas of graphic design.
Logos fall into three classifications (which can be combined). Ideographs, such as Chase Bank, are completely abstract forms; pictographs are iconic, representational designs; logotypes (or wordmarks) depict the name or company initials.