Expression Studio is a set of a family of tools for professional designer's developers. It is a robust professional design tool which gives creative freedom to developers.
Features:
1. It revolutionizes the speed of prototyping
2. It allows creation of effective UI with sample data
3. Fast, flexible, seamless workflow helps to excel the entire development process
4. These tools save time of creating web sites to deliver faster results
5. Advanced visual diagnostics speed debugging
6. It offers team Foundation Server integration
7. Rich standards-based web design & technologies
8. It provides precision layout control and supports a broad range of technologies.
9. It helps to speeds up cross-browser debugging with advanced visual diagnostics
More Information and Official Website:
Download : http://www.microsoft.com/en-in/download/details.aspx