Shelf control refers to the ability to manage and maintain one’s personal library or collection of books, ensuring that it remains organized, up-to-date, and easily accessible. This includes regularly purging unwanted or outdated books, arranging them in a logical and aesthetically pleasing manner, and keeping track of what books are currently on the shelf. It also involves exercising restraint and discipline when it comes to purchasing new books, in order to prevent the shelves from becoming overcrowded and chaotic. Ultimately, shelf control is about creating a harmonious and functional space for one’s beloved books to reside.