Who introduced the term 'looking-glass self' to highlight that our self-identity is shaped through social interactions with others?

Explanation

The concept of the 'looking-glass self' was developed by Charles Horton Cooley to explain how an individual's self-concept is formed through their perceptions of how others view them. George Herbert Mead focused on the development of the self through social processes, but the specific term 'looking-glass self' belongs to Cooley. Erving Goffman is known for dramaturgical analysis, and Harry Harlow studied attachment in primates.