Personal Virtual Humans

The "avatar" is a representation of a person, which can vary from a static photo to a character that is capable of interacting with a virtual environment. In a simple sense, an avatar may be a two-dimensional image that merely represents a person; in more complex ones, it may be a 3D depiction of an actual person.

EN: The remainder of the article provides descriptions and illustrations of avatars, as they existed at the time the book was written. It's perishable information whose time has passed - if it's of interest, search the Internet for contemporary examples.