JASON FRIED is the founder of 37signals a privately held web-based software development
company and the co-author of the international bestseller Rework. His motto is ¿It's simple
until you make it complicated¿. DAVID HEINEMEIER HANSSON is the creator of Ruby on Rails an
open-source web framework on which hundreds of thousands of web applications have been built ¿
including Twitter. He is also Fried¿s business partner at 37signals and co-author of Rework. 37
SIGNALS is internationally renowned for its innovative web products including Basecamp
Highrise and Campfire. Founded in 1999 37signals has grown into a multi-million dollar company
with over three million loyal customers. The company based in Chicago has been profiled in
the Guardian Time Wired and Business Week.
