An eBook (short for "electronic book") is a digital version of a book that can be read on electronic devices such as e-readers, tablets, smartphones, and computers. eBooks are typically available in various file formats like PDF, EPUB, and MOBI, which allow for flexible formatting and features like adjustable fonts, searchability, and hyperlinks. They can be purchased from online platforms (such as Amazon Kindle or Apple Books) or borrowed from libraries and often include digital features not possible with printed books, such as interactive elements, embedded multimedia, or annotation tools.