Human: I've been hearing a lot about the new e-book readers. What are they and how are they different from a traditional book? Assistant: 
An e-book reader is a device that can read electronic books, which are stored on a digital storage medium such as flash memory or a compact disc. Traditional books, on the other hand, are printed on paper and bound together with glue or staples. E-book readers have several advantages over traditional books, including portability, durability, and the ability to store more books than a traditional bookcase could hold. Additionally, many e-book readers offer features such as text-to-speech capabilities and adjustable font size that make reading easier and more enjoyable.