He is best known as the top contributor to Stack Overflow, particularly on C# and Java questions, and also for his book "C# in Depth". C# is his favourite language, and he is the convenor of the ECMA technical group standardizing the language. Beyond language nerdery, Jon loves the crazy world of dates and times, and is the primary contributor on the Noda Time project, an alternative date and time API for .NET. Jon lives in Reading (UK) with his amazing wife and three kids.