Although Lemert’s work is related to labeling theory, he was not influenced by the earlier writer’s works. The origins of labeling theory can be traced back to the work of three sociologists’ concepts regarding the concept of self and the effect that tagging or labeling can have on an individual’s self-concept. First, Charles Horton Cooley, in his book entitled Human Nature and the Social Order, presented a concept which he termed the "looking glass self" in which a person will react to others based upon his imagining how he appears to others. According to Cooley, there were three principal elements of the concept: "the imagination of our appearance to the other person; the imagination of his judgment of the appearance, and some sort of self-feeling such as pride or mortification."(p. 152) Additionally, what moves us to pride or shame is the imagined effect of this reflection on the other’s mind. This social self can be called a "looking-glass self."