There are different ways of moving about in a virtual world. The most intuitive and most natural way is simply through the movement of your own body. Thus, you can explore the virtual environment just as you would in the real world. The obvious disadvantage, though, is that the virtual World is constrained by the space that is physically available to you at the time. In this article, I will list some techniques of representing movement in VR and explain why Redirected Walking is a particularly interesting example among them.