Yes, you can read books on a Kindle device without an internet connection. Once a book has been downloaded to the device, it is stored in your library and can be read offline at any time. This feature allows for a truly flexible reading experience, enabling you to enjoy your books even in locations without Wi-Fi or cellular service. It is advisable to ensure that your Kindle is connected to the internet at least once to download your desired books. If you are a user of Kindle Unlimited or have borrowed books, make sure to download them ahead of time. Additionally, any annotations, highlights, or bookmarks made while offline will sync once the device reconnects to the internet. For further details, visiting the official Kindle website may provide more insights into offline reading capabilities.