This is a book advocating and showing techniques for end user programming for applications.

 

Havana allows an unprecedented access for end user programming through its three layers extensibility;usage of custom tags and function; creation of custom tags and function directly online and going really deep to asp.net page and control power. You can do these programming directly online using IronPython. You can actually build most of Havana back end admin (it will ship with source) using its API.