An e-book is the electronic version of a traditional print book. Instead of words on paper, it is words on a screen. Anyone who uses the Internet can find e-books. But a copyright makes it illegal to sell or copy an e-book without the permission of the writer or publisher. Many e-books do have copyright protection. Some writers even write books that sold only as e-books. In the coming years, the number of e-books is expected to continue to increase. Many now include music and images.And many come with links to other e-books on the same subject. Some people are happy to sit at their computer when they read an e-book. But others like to be able to carry a book with them. These people may want to buy an e-book reader. This is a small device that can link with a computer to load the contents of a book.