If you write Erotic Romance or any other genre of erotica you may not be aware of Amazon's attempt to censor to omit anything erotic in its search results unless you specifically ask for 'erotic' in your search query.
It is a step in the right direction now that more kids are downloading their own stories to read but is there any downside for authors, I'm not sure it will make a huge difference to my own books but those who are more explicit may find their sales drop slightly.
Can I refer you to this excellent blog post by Selena Kitt explains it much better than I can.
CLICK HERE
Forewarned is forearmed, as they say.
At least you can give yourself a better chance of getting your books found on Amazon if you are careful about keywords, titles and covers.
Happy writing.