Group Psychology and the Analysis of the Ego is a work of Sigmund Freud from the year 1921. In this monograph, Freud describes psychological mechanisms at work within mass movements. .
Group Psychology and The Analysis of the Ego
By Tommy Kader
Freud's theory about the mind is interesting. He explains that when the ego plays with objects, it creates ideas about them. I think he is correct in saying that the group effects the personality of the individual.