The problem I have always had with that, is that if the book belongs to the library, I usually forget the title and author once I’ve turned the book in. Sometimes I will remember. But most of the time I won’t.
I made this handy little printable for that problem. I now have a place to write down the title of the library item, who wrote it, and what it was I liked. I keep this little form in my personal binder. So far it’s working wonderfully.
Because I love to share whatever helps me, this form can be printed for your personal use: