A printed book can be a set of literary created composition that may be posted or supposed for being posted that contains a list of printed, illustrated or blank sheets built of ink, paper and or other items mounted along with an hinge. (OXFORD ENGLISH DICTIONARY). An Electronic Guide (e-book) alternatively is often a usual reserve length publication but in electronic variety. It could be an e-version of a printed book that means it is made up of text, visuals or both much like the printed book but is simply readable on computers plus some other digital devices. The e-books also will probably exist with no need of their printed versions.