Born in the lower Rio Grande Valley of South Texas, Gloria Evangelina Anzaldúa (1942–2004) was a prolific writer, scholar, and activist. Her corpus of work includes essays, books, edited volumes, children’s literature, and fiction/autohistorias. Anzaldúa’s life and writing are at the forefront of critical theory as it interacts with feminism, Latinx literature, spirituality, spiritual activism, queer theory, and expansive ideas of queerness and articulations of alternative, non-Western epistemologies and ontologies. The geographical proximity to the US–Mexican border figures prominently throughout in her work, as does her theorization of metaphorical borderlands and liminal spaces. Her oft-cited text Borderlands/La Frontera: The New Mestiza is included in many university courses’ reading lists for its contributions to discourses of hybridity, linguistics, intersectionality, and women of color feminism, among others. Anzaldúa began work on her more well-known theories prior to the publication of Borderlands/La Frontera and continued to develop these theories in her post-Borderlands/La Frontera writing, both published and unpublished. After her sudden death due to complications of diabetes in 2004, Anzaldúa’s literary estate was housed in the Nettie Lee Benson Latin American Collection at the University of Texas, Austin in 2005.