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Graphene has unique electronic and material properties, which can lead to enhanced material performance in graphene-based devices and applications. The cover shows a multi-layered reduced graphene oxide (rGO)-deposited polymeric film for barrier polymer applications. This can be simply prepared by various common coating methods such as spin coating, spray coating, and layer-by-layer coating from GO or rGO solutions that are well-dispersed in aqueous or organic solvents. These highly packed graphene multilayer-deposited polymeric films exhibit low gas and water vapour permeability, with potential application in barrier packaging for food, and in electronic devices such as flexible displays. Byung Min Yoo et al. review the state-of-the-art research on the use of graphene. DOI: 10.1002/app.39628