Kindle Book Sharing
This post won’t be about security, but still something that is worth mentioning.
If you want to share your Kindle content with your colleague? you can either loan it to him (but then he has two weeks to finish the book!) or you can just swap Kindles (devices) after deregistering them both, and reregistering them both, remember to put everything outside your Collections or they will get “lost” in the swapping.
I just tried it with a work colleague and it worked great!