In order to maximize the functional space of a room, the decorationer needs to understand and incorporate various principles of human psychology in the design process. A well-designed space combines the elements of aesthetics and functionality in a harmonious way. The key to successful space planning is to recognize that different areas of the same room have different functions. The social zones are close to the dining room, the work zone is near the kitchen and the private area is close to the bathroom. Moreover, the scale of a room must be appropriate to the human frame.