Addison-Wesley and Developmentor have provided TheServerSide.NET with the entire book of Essential XML Quick Reference for free download. Essential XML Quick Reference is for anyone working with today’s mainstream XML technologies. It was specifically designed to serve as a handy but thorough quick reference that answers the most common XML-related technical questions.It goes beyond the traditional pocket reference design by providing complete coverage of each topic along with plenty of meaningful examples. Each chapter provides a brief introduction, which is followed by the detailed reference information. You can get it from here.