What is the best way to generate node(book) to ePub? I want to create a Journal site that can generate book(node) to ePub, like Open Journal Systems(OJS). So what is the best way to generate node to ePub? I have tried Printer, but it only show the following error messages on iBook. File generated by PHPePub(Printer) can open by Calibre, but all images are missing.


  This page contains the following errors:
  
  error on line 47 at column 27: AttValue: " or ' expected 
  Below is a rendering of the page up to the first error.
I know this answer is dead simple, but have you tried EPUB Export module?


  This project builds content objects from drupal and bundles them into an
  EPUB 3.0 document. Currently it will export a rendered entity seperate of all
  of the page markup and gather all the referenced resources within the content
  and bundle those into one EPUB document.


I tested it on a clean install and it appears to work as advertised.