This document outlines key concepts related to identity, culture, class, and gender from a sociological perspective. It discusses: 1) Theories of class identity and how indicators like occupation and lifestyle/culture have changed over time. 2) The development of class-based subcultures and debates around the decline of traditional working-class identity due to rising consumerism and popular culture. 3) The rise of feminism and queer theory in challenging male-dominated perspectives and recognizing fluidity and diversity in gender and sexuality.