An eBook, short for electronic book, is a digital version of a traditional printed book that can be read on a computer, tablet, e-reader, or smartphone. It provides the same content as a physical book, but in a convenient electronic format that can be easily downloaded and accessed anytime, anywhere. eBooks are popular for their portability, accessibility, and the ability to carry a large library of books in one compact device. They often come in various formats, such as PDF, EPUB, and MOBI, and cover a wide range of genres and topics.