The difference between a logo and a glyph is simple. A logo is design such as a emblem or symbol that will help promote a company and expand the company in a form of advertising. Logos are mainly just symbols or icons or simply just the name of the organization. For example a BMW logo. A glyph is an element of writing and contributes to the meaning of what is written. An example of a glyph would be the ancient art of the Egyptians.