This paper reviews the various experiments and proposed mechanisms of light emission from graphene from recent research. Due to graphene’s combination of exceptional mechanical, electronic, and optical properties, graphene shows promise for emerging optoelectronic and photonics applications, such as light emitting devices, solar cells, photodetectors, and plasmonic devices. Various types of light emission have been demonstrated, from graphene and graphene-related structures (e.g. graphene oxide and graphene quantum dots) with promise for applications such as drug delivery, light emitting diodes, and sensors. Several different routes to graphene light emission have been experimentally demonstrated or theorized over the last several years. Light emission mechanisms that will be discussed in this work include photoluminescence, electroluminescence, thermal emission, surface plasmon-electron interaction and the Quantum Čerenkov effect.