The clothespin reading light is a clip that you can attach to your book and will act as a reading light to help you read in the dark. Believe it or not, some people actually buy or rent physical books that you can open up and flip through actual pages of paper that have many words on them that you can read through that will give you information or tell you a story. Sometimes people read these in the dark as to not disturb their sleeping partner. Sometimes a lamp is too bright, and a flashlight is just too clumsy to hold while reading. Luckily the clothespin book light clamps right on to your book so you don't have to hold it, is just bright enough to let you read with ease in the dark, and not bright enough to awaken your fat ugly wife.