To buy Kindle eBooks, use an existing or create a new free Amazon account and add a valid payment method. With the Kindle Store on Amazon US, you have access to over one million paid and free Kindle eBooks in more than 40 languages including English, Simplified Chinese, French, and Hindi.
Yes. To purchase eBooks from the Kindle Store on Amazon US, feel free to use your existing Amazon account or create a new free Amazon account here to access your library of Kindle eBooks.
Amazon accepts a variety of payment options, including credit and debit cards.
See here for information on transferring an existing account from one Amazon marketplace to another.
For help with Kindle eBooks, please visit Amazon US's Support for Kindle Content help page.