Ebook's Advantages:Text can be searched automatically, and cross-referenced using hyperlinks. This makes e-books an excellent choice of format for works that benefit from search and cross-reference capabilities, such as dictionaries, reference works, and certain kinds of textbooks.Less physical space is required to store e-books. Hundreds (or thousands) may be carried together on one device. Approximately 500 average e-books can be stored on one CD (equivalent to several shelves of print books). Because they take up little space, e-books can be offered indefinitely, with no 'out of print' date, allowing authors to continue to earn royalties indefinitely (copyright law permitting) and allowing readers to find older works.Readers who have difficulty reading print books can benefit from the adjustment of text size and font face. Text-to-speech software can be used to automatically convert e-books to audio books. In addition, some e-books devices allow reading in low light or even total darkness, with a back-lit device.