The term "e book" is commonly used to denote electronic books that can be read on digital devices. However, there are several synonyms that can be used instead of e book. One of the common synonyms for e book is electronic book, which simply describes the digital format of the book. Another synonymous term is digital book, which refers to any book that is available in a digital format. E publication is another synonym for e book, which is often used to describe books that are published exclusively in digital formats. With technology evolving rapidly, the continued growth of electronic publishing makes these synonyms increasingly important in the book industry.