The Kindle Store publishes books that are in the public domain, so if you have a rare or unusual book you can make an e-book out of it and sell it there. I did that with this book:
http://www.amazon.com/Ancient-Manners-I ... 686&sr=1-8
I've written a chapter in my e-book book that explains how to make an EPUB into a Kindle Store-ready ebook. (The rest of the book tells you how to make the EPUB):
http://en.flossmanuals.net/e-book-enlig ... ing-epubs/
I donated Plain Text and HTML versions of the book to Project Gutenberg. While those have been downloaded hundreds of times the Kindle Store version has yet to make a single sale. Putting public domain books on the Kindle Store won't make you rich, but I can't think of a good reason NOT to do it.
The Project Gutenberg title may be found here:
http://www.gutenberg.org/ebooks/36378
I'm proofing another book, The Big Book of Aviation for Boys, and should have that in the store soon. That probably won't sell either.
Making Books for the Kindle Store
Moderator: peterZ