This book constitutes the refereed proceedings of the Second International Conference on Virtual Worlds, VW 2000, held in Paris, France, in July 2000. The 26 revised full papers presented together with two invited contributions were carefully reviewed and selected from numerous submissions. The book is divided into topical sections on virtual worlds communities and applications, virtual worlds technologies and tools, virtual humans and avatars, art and virtual worlds, artificial life and complex systems, and virtual reality and interfaces.