Finally, structures are the 'real things' beneath the surface or the appearance of meaning.Post-structuralist thought has tended to reject 'humanist' assumptions in the conduct of social theory.. 
In the 1920s and 1930s the Chicago School produced a major body of Theory on the nature of the City, important to both Urban sociology and Criminology, UẸ̀tọ́”) symbolic Interayapa as a method of field research.. 