This book is about programming with J2ME on wireless devices with focus on developing games. It is assumed you have some knowledge and programming experience with J2ME and J2SE. The book does not go into detail on topics like how to make high level GUI menu but does demonstrate what a game menu might look like. Nor will it explain in detail how to use the Record Management System (RMS), but will go over topics that use RMS such as high score and game settings. As well a knowledge and experience with threading will be an asset before proceeding with.