Amazon, which got its start selling books online, announced this year that, for the firs

Amazon, which got its start selling books online, announced this year that, for the first time, its digital books had outsold than paper books. This trend of going digital does【M1】______ not hold true for all books: While many popular consumer books have successfully made the switch into the new form,【M2】______ textbooks are already widely read on paper. Textbooks are【M3】______ gaining, consequently, as publishers take advantage of the【M4】______ popularity of tablets like the Kindle and iPad, expanding their catalogues and offering products like rent digital books that【M5】______ expire after a semester or two. The potential for digital growth is leading publishers to experiment products that stretch the boundaries of traditional【M6】______ textbooks, slowly turning away from static text and images toward multimedia, intuitive approach, publishers say.【M7】______ "Textbooks as e-books ought to be seen as a stepping stone of【M8】______ the future," said Mark Majurey of Taylor & Francis, a textbook publisher in Britain. Digital textbooks are any books which can be downloaded【M9】______ to an e-reader or computer or those that can be read online using a Web browser. While no one keeps precise numbers of digital textbook sales globally, a number of companies have seen similar growth patterns and nearly identical market share. According to the Student Monitor, a private student market research company based in New Jersey, about 5 percent of all textbooks required in the autumn in the United States were【M10】______ digital textbooks. That is more than double the 2.1 percent of the spring semester.

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