Prototype and script.aculo.us: You Never Knew JavaScript Could Do This! (Pragmatic Programmers)
Christophe Porteneuve has been doing IT R&D for more than 10 years, specializing early in Web development.  He joined Prototype Core in 2006, wrotePrototype and script.aculo.usin 2007, and sometimes speaks at conferences such as The Ajax Experience.  He's the CTO of Ciblo.net in Paris, France, where he lives with his wife, Elodie.