I've chosen to be exclusive to the Kindle ebook format. There are several reasons for this but the main one is that I sell far more books on Amazon and any other digital webstore. The advent of Kindle Unlimited was the deciding factor for this move. By being exclusive to Kindle Direct Publishing I am able to offer my books to Kindle Unlimited subscribers. I'm paid for the pages read by these readers. This has brought my books to the notice of many more people.
In short, it simply pays for me to be exclusive on Amazon.
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