has a PhD in Anthropology. Her main areas of interest are the study of psychoactive substances, drug policies, shamanism, ritual and religion. She is author, co-author and co-editor of seven books, 2 with translations to English, and one journal special edition. Subscribe to this site’s companion newsletter, which covers the author’s writings, the universe of ayahuasca and psychoactive substances in general, legislation on drugs, important conferences and activities in the field. Postings are in English or Portuguese and typically appear a few times a month.