Nidia A. Olvera Hernández is a Mexican historian and anthropologist. She has a Ph.D. in modern and contemporary history at the Mora Institute in Mexico City. Nidia earned a bachelor’s degree in ethnohistory from the National School of Anthropology and History (ENAH) and a masters in social anthropology from the Center for Research and Higher Studies in Social Anthropology (CIESAS), in Mexico City. Her main areas of interest are the old and modern history of psychoactive substances and drug policy. She has worked like a Project Coordinator at the United Nations on drug treatment programs, has experience working on social research consultancies, with ONGs and like professor at the Autonomous University of Mexico City and ENAH. She is co-editor of the book Plantas Sagradas en México: tradición, religión y ritualidad [Sacred Plants in Mexico: Tradition, Religion and Ritual, COLSAN/Chacruna Institute 2023] and author of several peer-reviewed articles. Currently she is a Postdoctoral Researcher at the Project “Poison, Medicine or Magic Potion? Shifting Perspectives on Drugs in Latin America (1820-2020)” at Radboud University, Netherlands.