I have 3 other people on my account. It's my account, so I manage it, & any email associated with the account or anything else, comes in my name. What we do is when I buy any books for my Kindle, or get them free, I go to the Manage Your Kindle page, & use the drop down menu out on the far right & send the books to them too. My daughter has my log in & account information so that she can look at the books or go online & order books when she wants, but I haven't given it to her mother in law. Most of the time if they want any certain books, they tell me, I order & send it to their Kindle, & then they pay me. How you handle that is up to you. Also when I check out a Kindle library book, I can send it to the others on my account.