An e-book, short for electronic book, is a digital version of a traditional printed book that can be read on electronic devices such as e-readers, tablets, smartphones, or computers. E-books are often available in formats like EPUB, PDF, or Kindle. They provide a convenient and portable way to access a wide range of reading materials, including fiction, nonfiction, manuals, guides, and educational content. E-books are popular for their ease of distribution, affordability, and instant availability.