Kindle is an e-reader produced and sold by Amazon. It allows users to read ebooks and other digital content anywhere. Amazon heavily markets the Kindle through advertisements on its website that try to convince users to learn about and purchase the device. Different YouTube videos show how the Kindle has additional functions for different types of readers and an active lifestyle, allowing reading anywhere. The videos also demonstrate how to use the Kindle and review the user experience, such as a tutorial for jailbreaking the Kindle and getting free books, although Amazon reserves the right to remotely delete content or accounts if terms of service are violated.