Bio blurb and headshot

download larger size headshot

Stoyan Stefanov is a Facebook engineer, ex-Yahoo, architect of the YSlow 2.0 performance tool and creator of the image optimization tool!

He's the author of JavaScript for PHP developers (O'Reilly), JavaScript Patterns (O'Reilly), Object-Oriented JavaScript (Packt Publishing), The Book of Speed (online), and a contributor to High-Performance JavaScript (O'Reilly) and Even Faster Web Sites (O'Reilly).

Stoyan is a Zend-certified engineer, blogs at and and speaks at conferences and meetups around the world (Velocity, JSConf, OSCON, Web Directions, Fronteers...)

A Bulgarian-Canadian, Stoyan lives in Los Angeles with his wife and daughters and spends his time biking between home, office, the beach, band practice, flying lessons and kids birthday parties.

  • “四新”彰显党的十九大思想灵魂和精髓要义 2018-08-17
  • 热身赛-U17女篮73-68立陶宛 杨舒宇19分刘禹彤13分 2018-08-16
  • 七月流火:一半是甜蜜 一半是仁慈 2018-08-15
  • “嫦娥”飞向月球背面,将会揭开哪些秘密? 2018-08-15
  • 一代枭雄身后事:“曹操墓”认定过程缘何一波三折? 2018-08-04
  • 女出纳侵吞千万公款扮富婆 7年未被公司发现 2018-08-04
  • 南昌PM2.5浓度写进目标责任书 切实防治大气污染 2018-07-20
  • 网友投诉不文明养犬行为 有关部门加强治理 2018-07-20
  • 74| 594| 91| 578| 584| 364| 818| 344| 635| 724|