title_body: Known Issues with Amazon's Converter
upvoted_answer: Kindle uses ISO-8859-1 format, not UTF-8. So there are a lot of characters not natively included in Amazon's format. I am Spanish and I find issues with characters like — (em dash) or € (euro currency). Fortunately, you can use their html entity code instead. For instance, the html entity code for em dash is &amp; mdash ; and the html entity code for € is &amp; euro ; (without spaces).
  
  Here you are:
  
  
  ISO-8859-1 entry in Wikipedia. Incomplete support to Hungarian characters is mentioned by November 3rd 2014.
  List of html entity codes in the W3 Consortium.
  
  
  Amazon published a list of ISO-8859-1 characters in a gif image. This is my first post on stackexchange, so I cannot publish more than two links. This is the image distributed by Amazon (you can google it if you want to access the info by yourself):