Ebooks
An ebook is an electronic copy of a book. You can start reading an ebook as soon as you've paid for it, so there is no waiting for delivery. Ebooks also offer the convenience of size and portability.
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Examples
In order to read an ebook, you need to download a small piece of free software known as an ebook reader. Ebooks come in different formats and each format has its own reader software.
Security
Ebooks have security settings which may prevent or limit printing and copying, as well as specifying how many different devices you can download the ebook to..