I only stumbled across this feature accidentally. I found that I could send my own .epub and PDFs to my kindle super easily.
1. Go to www.amazon.ca/sendtokindle and sign in to your Amazon Account.
2. You are Brought to an official Amazon page that looks like this:
4. When they are finished being sent you will be able to view them in your library.
- After a few moments you don't see them in your library, if viewing in Collections, they would be in the Collection titled "Uncollected". You can also select to view your library by title, author or most recent. The "most recent" option will show you all your books beginning with newest upload or latest opened file. (Even this option gives you the choice to be Ascending or Descending) .
