This. You wont find the real popular books on the shelves. It's not unheard of having books that are never shelved in their lifetime. As they are reserved even

This. You wont find the real popular books on the shelves. It's not unheard of having books that are never shelved in their lifetime. As they are reserved even before they are purchased and continually reserved by other patrons. Until they are weeded due to wear.