This is normally the area where the publisher drones on and on about the number of copies you can download, the horrible things that will happen to you if you share it, or somehow insinuate that they and their children are moments away from the poor house, mostly due to evil nasty pirates.
I’m not going to do that. I’m going to trust that the current copyright system–broken though it may be–is what we have to work with. If you’ve legally purchased this book, you should be able to read it and consume it in any way you see fit. On any device you see fit. At any time you see fit. If you encounter some crazy system that simply will not work for you, then drop me an email at email@example.com. I’ll do my best to keep this book DRM-free and accessible. And if that means sending you an unlocked copy, so be it.