Liliana Cosi got a diploma at the Scala Theatre Ballet-School in Milan. She followed some specialization courses at the Bolshoi Theatre for four years. In 1965 she made her debut as the protagonist in the ‘Swan Lake’ at the Kremlin Congress Palace in Moscow;  in the following years she danced in ‘Giselle’ and ‘The Sleeping Beauty’ at the Bolshoi. She became the ‘Prima ballerina etoile’ at the Scala theatre where she interpreted the most challenging roles of the whole classic repertory. In 1969 she made her debut with Nureyev. Her career reached the highest international standards. She danced in London, U.S.A., Brussels with Bèjart, Berlin, Bucarest, Cuba at the Avana Festival, Cape Town, etc.    She was often a member of the jury at the Ballet International Competitions in Moscow. In 1977 she founded the Classic Ballet Association together with Marinel Stefanescu and his wife Louise Ann Smith. She is the president of the Association the aims of which are not making money but art, culture, spreading the ballet art, beyond the limits of  lyric theatres and giving life to new performances which may contribute to gratify the thirst for beauty the world feels. In 1978 she opened a Site, in Reggio Emilia, which became a large Production Centre, and the seat of ‘the Classic Ballet Company’ and ‘the Ballet School’ at professional, residential level. The New Company enriched her repertory with more than 20 new titles created by Marinel Stefanescu. Her activity has always turned particolarly to young people by teaching them  classical dance, repertory and organizing performances suitable for each age standard. Many are the prizes and the national, international appreciations she has received for her artistic career. She is always invited to refresher Courses, meetings in the most different fields in order to present the results of her rich experience.