Do You Do It or Does It Do You?: How to Let the Universe Meditate You. E-book management. Comparison of e-book readers. An e-book reader is a portable electronic device that is designed primarily for the purpose of reading e-books and periodicals.
E-book readers are similar in form to a tablet computer, and usually refer to readers that use electronic paper, which means better readability of their screens especially in bright sunlight, and longer battery life. When disconnected from the web, an e-book reader's battery will last from weeks to months. MEN OF MATHEMATICS VOLUME One and TWO (PELICAN) by E. T. BELL.