The last factor is save environmental. As a result of eBooks save trees. eBooks save trees, eBooks eliminate the need for filling up landfills with old books. eBooks save energy, and transportation costs, and reduce the pollution and then eBooks eliminate the problem of "unsold books", which are often shredded,and transformed into toilet paper that a smart step, but still a waste of energy and resources. (Pastore, 2009). That is one of the many environmental benefits of digital publishing and reading such as saving trees, reducing paper consumption saving energy used in book production, eliminating packaging materials, saving fuel used for transporting paper books, and reducing the energy. Hence, eBook is saved the environment and saved the natural resource.