POV: You hurry into the library in pursuit of a book that you need for your literature class, and the deadline to write an analytical essay on it is fast approaching. You discover from using the catalog on our website that, luckily, your local branch has it in stock. But when reading the description of its location, you see a random decimal number with some letters underneath, and have no idea what that means. You become officially lost in the stacks. Should you turn back the way you came and ask an employee at the front desk? Or do you dare to trek through the seemingly endless maze of books? You decide to continue onward, but then your surroundings change. Now you’re in a section where there’s no numbers and just letters??