Ebook is short for Electronic Book. This allows you to view the book on your computer. Normally it is downloaded, Ebooks have many advantages over typical hard copy books. They are lighter and take up less space. They save trees and cost you less. You can use your computer to search thru them (no . more thumbing thru warn out pages). They last for ever, never fade and you can't spill coffee on them. They are also typically more current than hard copy versions as they can be updated very easily.