Kindle Unlimited isn't included with Prime. You will have to pay $12 per month after a 30-day trial. Only a small offering ...

Access to "millions of titles" in the UK, plus a selection of magazine subscriptions, and audiobooks with Audible narration.

The latest Stuff Your Kindle Day takes place on Nov. 15. Pick up hundreds of romance e-books for free. Stuff Your Kindle Day ...

and audiobooks with Audible narration. Note that under the UK deal terms, "all existing Kindle Unlimited subscribers with free trials or paid memberships are not eligible for this promotion", and ...