I'm not sure that you can get your book on Amazon just like that. First you need to find publisher and then think about options like where to sell it.
Write it first, that is the usual starting principle in publishing a book. :) I guess anyone can sell their book on amazon, like any other product, just sign up with them.
Providing your book has passed editing and been reviewed, you need to employ a book marketing guru with connections to the media.
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