In this handy booklet you can write down all your reading notes. In the Book Lover’s Diary (US) (EU click here) you can register what books you like to read, what you have read and thought about it, a wish list and so forth. The book has separate sections to write all of this down. It also contains a section to write down the books you have loaned out.
But there is also a book that is only for registering loaned out books. It is called the Book Lover’s Borrow Book (US) (EU click here)This helps you keep track of your books. I won’t need this one, because I never lend out books anymore. I always got them back with cracked backs or otherwise damaged. So I stopped lending books altogether.