I absolutely hate that this comment is downvoted. This works, costs as much as a regular hard cover to setup -- $27, as someone pointed out. As the author point

I absolutely hate that this comment is downvoted. This works, costs as much as a regular hard cover to setup -- $27, as someone pointed out. As the author pointed out - parental controls prevent any access or misuse. Hell, you can just not put your account on it, invite your friend to use his own amazon account and lend a book to him. Still, works just like a book. This fixes the only gotcha Kindle sharing has - you can only share with other Kindlers. Just because it's not one's opinion, does not make a comment downvote-worthy.