Learning ASP.NET AJAX textbook aims at helping the users develop next-generation web applications easily and effectively. One of the unique features of this textbook is the line-by-line explanation of source code which will enable the users having basic knowledge of web technologies to gain a thorough and practical understanding of AJAX. Clear and elaborate explanation of key ideas and terminology combined with well-organized references and examples makes this textbook an ideal guide for both the novice and the advanced users.