title_body: Is there a way to publish an eBook, distribute it and the push updates to the distributed eBooks? If I publish an eBook, distribute it and later I want to edit or add to the information, is there is a way to push those updates to the already distributed copies of the eBook?
upvoted_answer: Most online publishers have a method to allow for updates to published ebooks. The user generally is given way to identify that a book has an update, then the user is given the option to re-download the work.  I don't think any publisher has "push" to reader.  
  
  So yes there is way to redistribute the book, but it is dependent on user to perform some action to receive the update.