Generally speaking, it is better to place the desk facing the door. For example, if the door of your study faces south, you can place the desk facing the door; This is the issue of direction, but what about the position? Here's a point to note: the desk should face the door, but in terms of position, it should avoid being directly opposite the door. The desk position that is directly hit by the energy from outside the door will not only make it hard to concentrate, but also surely bring loss to one's career in the long run. This is the most basic rule for placing a desk.