Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...
In early 2026, Amazon will allow users to back up their Kindle Books in EPUB. This is the biggest news in publishing in quite some time.
If you buy books from Amazon, Barnes and Noble, Kobo, Google Play Books, or Apple Books, where can you find the best deals?
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