The 43rd ISRM online lecture will be delivered by Professor Anna Maria Ferrero. The lecture title is: “Design of rock fall protection works”. It will be broadcast on September 21st at 10 A.M. GMT, on this page. The lecture will remain online. As usual, the attendees can ask questions to the lecturer by e-mail during the subsequent five days. All on lin ISRM lectures are available on this page.