This article misrepresent's Samuel Gosling's research. It says that Gosling's experiments show that people can make "surprisingly accurate" assessments of strangers by looking at their personal space. In fact Gosling's research shows that people can form a more accurate assessment from a first impression (even a still photo) than they can from looking at someone's personal space (such as a bedroom or cubicle), and in fact people get many things wrong by looking at someone's personal space. If you want to know exactly what you can and can't tell about someone's personality from looking at their personal space, get his book.