An e-book reader, also called an e-book device or e-reader, is a mobile electronic device that is designed primarily for the purpose of reading digital e-books and periodicals. Any device that can display text on a screen may act as an e-book reader, but specialised e-book reader designs may optimise portability, readability (especially in bright sun) and battery life for this purpose. A single e-book holds the equivalent of many printed texts with no added mass or bulk. An e-book reader is similar in form to a tablet computer. A tablet computer typically has a faster screen capable of higher refresh rates which makes them more suitable for interaction. Tablet computers also are much more versatile, allowing one to consume multiple types of content, as well as create it. Technologist Michael J.
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