Here: https://gizmodo.com/amazon-secretly-removes-1984-from-the-ki...
The irony that it was Orwell’s 1984 that was secretly removed from purchasers’ kindles seem to have been totally lost on Amazon.
I didn't know about that, would have been right that Amazon pays damages to the copyright holder. But they did at least refund the price paid, so the readers were no worse off than at start.
Generally not a big fan of Amazon-world, but if you don't mind reading older books kindle is good value I think. My 30pence copy of Orwell's "Homage to Catalonia" was very good value, and has not yet mysteriously disappeared from my Kindles!