Mark: The explanation in the modern Chinese dictionary is: a mark indicating characteristics.

It is a symbol that indicates the characteristics of something. It uses simple, significant and easily identifiable objects, graphics or text symbols as intuitive language. In addition to expressing and replacing something, it also has the function of expressing meaning, emotion and instructing actions.

LOGO: logo, trademark, logo: an easily identifiable and clear name, logo or trademark, especially for single-piece printing plates or templates

Mainly on various websites on the Internet A graphic logo used by websites to link to other websites, representing a website or a section of a website.

Logo: a visible sign.

Trademark: It is a distinctive sign that identifies a certain product or service as being produced or provided by a specific individual or enterprise.