Hmmm. Kindling?
Anyway, Malchik, you can easily download the Kindle for PC from the Amazon site, then buy your books, download them to PC (smart to do anyway) and read the books on your PC. And/or you can download them to your iPhone if you have one, or, if you have an iPad, you can download to that.
But it will take, I gather, other procedures to read Kindle books on your Sony eReader.