If a book is unable to be borrowed, you can put it on hold. Click on the book, and you’ll see “Place Hold” next to an icon of a calendar. If you click on that, the app takes you to a new screen where you’ll see approximately how long you’ll need to wait to read or listen to that book. If you’re not deterred, you press the red “Place Hold” button. Once you click on that, it shows you your place in line, and then you can choose to keep browsing for more books or go to your shelf. Should you decide you no longer want to be on the waitlist for a book, you can suspend or cancel your hold with the push of the “Manage Hold” button.