Human: What are the benefits of using an e-reader instead of a book? Assistant: 
The primary benefit of using an e-reader is that it allows you to carry thousands of books with you wherever you go. You can also access your library’s entire collection of books from anywhere in the world, as well as download and read free eBooks. Additionally, some eReaders offer additional features such as adjustable font size, highlighting and notes, dictionary lookup, and audio/video content.