Luigi Callisto is a Professor of Geotechnical Engineering at Sapienza University of Rome, where he teaches undergraduate and Soil Mechanics and graduate Geotechnical Earthquake Engineering. As part of the Eurocode 8 Project Team he drafted the section on earth retaining structures and serves as vice-chair of the Italian mirror committee of SC8. He is presently involved in drafting a new Italian technical code for the design and maintenance of dams and is a member of the committee revising the national building code. Since 2007 he has been a consultant on the effects of excavations and tunnelling on historically significant monuments and buildings for Rome’s new Metro Line C. He also collaborates with Italferr S.p.A., the Italian railway design company, on a contract to integrate his seismic design methods for earth retaining structures into their design procedures.