In recent years, e-readers have become increasingly popular among book lovers. One of the most well-known e-readers is Amazon's Kindle. And with it, Amazon also offers a subscription service called "Kindle Unlimited" that allows subscribers to access a vast library of e-books and audiobooks for a monthly fee. https://www.coherentmarketinsights.com/news/kindle-unlimited-the-e-book-subscription-service-with-a-wealth-of-features-951