Humans vary considerably in a variety of ways. For instance, we vary physically in height, frame size, skin color, hair type, nose shape, cranio-facial structures, sex and gender, distribution of fat, and so on. Are visible physical differences tied to other differences among people? Why do some types of difference take on significant meaning in some societies while others are meaningless? Why do we sort ourselves into distinct groups based on physical differences and what are the real-life consequences of doing so? This course examines human diversity in a global perspective by considering how and why human beings vary physically, as well as the processes through which categories of difference are culturally constructed.