Microsoft patterns & practices are Microsoft's recommendations for how to design, develop, deploy, and operate architecturally sound applications for the Microsoft application platform. It has evolved over the years with a fantastic accumulation of very valuable best practices and guidance for our customers and partners. Visit the sites for the latest updates. Many people have asked me for books and white papers. Nowadays, the best way to get the latest information would be via web site. When books are published, the content could be outdated. You can download the latest patterns & practices April 2007 DVD at zero cost. Of course, you can explore a lot of other invaluable information at this site. Check out the patterns & practices: Complete Catalog if you are lost. Happy browsing!