Book excerpt: This book explores and discusses how to obtain traditional intellectual property law rights in the non-traditional settings of video game and virtual world environments, and serves as a primer for researching these emerging legal issues. Each chapter addresses: end user license agreements; copyrights, patents, trademarks; and trade secrets, as addressed by U.S. law. It also covers international legal issues stemming from the multi-national user-base and foreign operation of many virtual worlds.