Stoyan Stefanov

Stoyan Stefanov is a Facebook engineer. Previously at Yahoo, he was the creator of the smush.it online image-optimization tool and architect of the YSlow 2.0 performance tool. Stoyan is the author of JavaScript Patterns and Object-Oriented JavaScript, as well as a contributor to Even Faster Web Sites and High-Performance JavaScript. Additionally, he's a blogger (phpied.com) and frequent speaker at conferences like Velocity, JSConf, and Fronteers.

Stoyan Stefanov is a Facebook engineer. Previously at Yahoo, he was the creator of the smush.it online image-optimization tool and architect of the YSlow 2.0 performance tool. Stoyan is the author of JavaScript Patterns and Object-Oriented JavaScript, as well as a contributor to Even Faster Web Sites and High-Performance JavaScript. Additionally, he's a blogger (phpied.com) and frequent speaker at conferences like Velocity, JSConf, and Fronteers. See less