The book will address the key subjects inherent to this technology that will provide the reader with some important information, which will help them understand Wildfly Application Server and its main functions. The target audience for this book will be the people who have an interest in knowing the technology, mainly administrators and developers. The WildFly server is the same as Jboss AS7, but with numerous improvements and features, improved modularity, and better performance. It is really impressive when compared to previous versions such as Jboss 5 and even other Application Servers such as Weblogic, and has strong support from the community at www.wildfly.org. I hope the audience accepts and adopts the use of Wildfly since it is a new technology and is in fact a very promising application server.