title: EPUB creation in .Net
body: <p>Is there any library out there that I can use to create epub files in .NET/C#? A Flowdocument -> epub conversion tool would be ideal, but any kind of library would be great.</p>
  
  <p>I am also interested in an assesment of how complex it would be to write one. I understand that it is basically a bunch of zipped XHTML files, but I keep hearing that using existing conversion tools it is difficult to get it right.</p>