We describe an electronic document reading device having a front, display surface and a device rear surface, the device including a connector mounted on an edge of the device. The device includes a back panel having an exterior surface to provide the rear surface and an interior surface, wherein the back panel is substantially transparent and the interior surface of the back panel is substantially opaque, and wherein the back panel has a cut-out for the connector such that a rear surface of the connector is substantially flush with the device rear surface provided by the exterior of the transparent back panel, such that the opaque interior surface of the transparent back panel gives the impression of a device thinner than a physical thickness of the device defined by the substantially flush connector rear surface and the device rear surface.