Steve Souders works at Google on web performance and open source initiatives. His books High Performance Web Sites and Even Faster Web Sites explain his best practices for performance along with the research and real-world results behind them. Steve is the creator of YSlow, Cuzillion, and SpriteMe. He is co-chair of Velocity and co-founder of the Firebug Working Group. He taught CS193H High Performance Web Sites at Stanford, and frequently speaks at conferences including OSCON, The Ajax Experience, SXSW, and Web 2.0 Expo.