"Virtual Lives: A Reference Handbook" describes the history, development, and role of virtual worlds, also known as virtual environments and immersive virtual environments. It provides detailed background about virtual worlds and their societal impact, from early precursors and inspirations to the latest trends and developments. Specifics on user demographics are included, as are descriptions of virtual worlds' functions, discussion of societal concerns and opportunities, and information about relevant research data and key persons and organizations.

Although virtual worlds in their...