Nuno Ribeiro is a member of IELT (Institute for the Study of Literature and Tradition) at the New University of Lisbon, where he develops a post-doctoral research (since September 1st, 2017), supervised by Fernando Cabral Martins and financed by FCT, about the Pessoa Archive. He received his PhD in philosophy with a thesis about Fernando Pessoa's philosophical writings, with the financial support of FCT between April 2008 and April 2012. He developed research financed by FAPESP, between November 2012 and October 2015, about the Pessoa Archive and Wittgenstein's Nachlass. He also developed research financed by the Department of Philosophy of the University of São Paulo, in the context of the program PNPD/CAPES, between December 2016 and July 2017. He is the author of books, editions, articles and chapters of books published in Europe, in the United States and in Brazil.