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.
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.
Answer
Did you try ePub Sharp? Here is the project page Note: I have not tried it myself.