. . "ScottBooks, RSKs (Reflective Screen Kindles) are like mirrors...and rocks, and trees, and platypi. ;) None of those have an internal source of light (we will ignore quartz for now ;) )...you see all of them by light bouncing off them.A mirror is, of course, particularly efficient at reflecting light, and they can have real glare problems...somebody using a signal mirror can really have glare." . . .