I am sure this has been asked in the past but my request is a little different from another I came across.
I'd like to have the ability to add my wife to my library, but so that she can have her own account with her own notes and other documents. I would be willing to pay a couple of dollars extra a month to have this.
I imagine publishers may have issues with sharing books between users, but it can be restricted to one additional user, and I'll be paying a bit extra anyway.