This book is NOT the 2nd edition of the previous book C# in Front Office (ISBN: 144215358X). Instead, it covers many new topics and has lots of additional information. All contents in this book are chosen based on feedback, comments and questions from readers of the previous book. Some of the code samples in this book can be downloaded from the following address: http: //www.flexiblestudy.com/Site/Examples/CsInFrontOffic