Catherine Belsey is a British literary critic who wrote the influential post-structuralist text Critical Practice. In it, she examines how texts construct readers as subjects by drawing on concepts from Lacan, Saussure, and Althusser. Belsey analyzes how ideology, the symbolic order, and the mirror stage influence subjectivity and how readers are positioned within texts. She brings insights from psychoanalysis and Marxist philosophy to literary theory in order to understand the relationship between readers and the social formations that texts represent.