*Colloquium dei XL, Accademia Nazionale delle Scienze*, May 2020*PROTEUS seminar 2022, Depertment of Philosophy, Univ. of Milan*, February 2022*Global Noncommutative Geometry Seminar*, December 2021*Mathematical Picture Language Seminar, Harvard University*, May 2020*Strings 2018, Okinawa*, June 2018*Workshop Subfactors, K-theory and conformal field theory*, 12th June 2017*Roberto Longo: Noncommutative Geometry: State of the Art and Future Prospects, Alain Connes 70th Birthday, Shanghai 2017**Roberto Longo: KMS states in Conformal Field Theory*Workshop on Algebraic Quantum Field Theory – the first 50 Years, Göttingen, July 2009

*Video*: Standard Subspaces and Applications to Quantum Field TheoryIntervista a Tor Vergata TV, Settembre 2008

Workshop on Subfactors and Algebraic Aspects of Quantum Field Theory, MSRI, Berkeley, December 2000

*Video*: Completely Rational Conformal Quantum Field Theory