Kindle Unlimited is a monthly subscription service offered by Amazon that gives members access to a large selection of digital books, audiobooks, comics, and magazines without due dates. Here are some key points about Kindle Unlimited:

• Kindle Unlimited costs $9.99 per month.
• Members can borrow up to 20 eligible Kindle Unlimited titles at a time.
• Kindle Unlimited works with all Kindle devices, as well as on your phone, computer, or tablet through the free Kindle app.
• Members can access borrowed titles from their Amazon device or Kindle reading app, even while traveling.
• Full magazine subscriptions are also available with a Kindle Unlimited subscription, and the magazines borrowed do not count towards the borrowing limit.
• Kindle Unlimited titles display a badge in the Kindle Store for easy identification.
• Members can sign up for a free trial of Kindle Unlimited, and at the end of the trial, they are automatically converted to a monthly paid subscription plan.

Its important to note that not all books are available on Kindle Unlimited, and the selection mostly includes classics, bestsellers, and series. Whether Kindle Unlimited is worth it depends on your reading needs and interests.