ebooks offer four fluidities to counter them: Fluidity of the page—The page is a flexible unit. Content will flow to fit any available space, from a tiny screen in a pair of glasses to a wall. It can adapt to your preferred reading device or reading style. The page fits you. Fluidity of the edition—A book’s material can be personalized. Your edition might explain new words if you are a student, or it could skip a recap of the previous books in the series if you’ve already read them. Customized “my books” are for me. Fluidity of the container—A book can be kept in the cloud at such low cost
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