If you are interested in quickly understanding more about Microsoft Expression Studio 4, on this page you will find short videos that introduce you to most of the tools in the Microsoft Expression suite (i.e. Expression Web, Expression Blend, Expression SketchFlow, Expresssion Encoder). On the same page you'll find introductory tutorials to Microsoft SilverLight and to good design practices such as separation of HTML code from CSS formatting stylesheets. For videos on Expression Design look here. A couple of quick user guides are also available here both for version 3 and 4 of Microsoft Expression suite.