Judith Butler’s Gender Trouble introduced the concept of gender performativity, arguing that gender is not an inherent identity but rather a series of performed social behaviors. This work became a foundational text in queer and feminist theory, disrupting binary notions of gender. Introduction to LGBTQ+ Studies: A Cross-Disciplinary Approach states, "Importantly, for Butler, because gender must be constantly reperformed, it can be intentionally or unintentionally troubled, revealing it as an ongoing project with no origin" (Miller, 2022)^[1] .

1. Amory, D. P., Massey, S. G., Miller, J., & Brown, A. P. (2022). Introduction to LGBTQ+ studies: A cross-disciplinary approach (2nd ed.). Kendall Hunt Publishing.