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So! Publishers don't buy rights to a book. They license those rights (albeit usually for the life of copyright, but contracts should always have a way for the license to expire if the work is out of print, and US copyright law allows for expiration even if it's in print). 1/4
Which is why when you "buy" an ebook, you're not actually buying it. You're licensing access it to it. And if a publisher's license went wrong in some way (like if they never actually had the ebook license, it happens), then they have to revoke that access to all accounts. 2/4
So if you keep your ebooks solely on the device/app where you "bought" them, it's like storing your physical books in the shop where you found them, and someday you might come to that shop and find they removed the book. 3/4
I doubt anyone much cares or will/can treat their ebooks differently because of this, but it's just a reality that was spinning in my head today, so I'm spinning it your way, do with it what you will. 4/4
