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$ 3 towards a selection of Kindle books [amazon.com] – Expires Jun 30, 2020 (YMMV)

To claim your $ 3 eBook credit, please sign in or create an account.
Credit must be used on an eBook on the deal page.
Credit must be claimed and used by 11:59 PM PDT June 30, 2020.
You can read your eBook on Kindle e-reader or Fire tablet, or any device with the free Kindle App.

List of eligible books here [amazon.com]