![]() Their main advantage over printed books is portability. Īny device that can display text on a screen may act as an e-reader however, specialized e-reader devices may optimize portability, readability, and battery life for this purpose. ![]() ![]() Amazon's Kindle Keyboard e-reader displaying a page of an e-bookĪn e-reader, also called an e-book reader or e-book device, is a mobile electronic device that is designed primarily for the purpose of reading digital e-books and periodicals.
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