Authorative Italian expert in classic motorcycles, Mario Coombo is the author of books such as 'Moto Guzzi. The complete history from 1921', ' Moto Guzzi Falcone', 'Moto Guzzi Airone', 'Moto Sertum' and 'Moto MV Agusta'.Borni in 1948, Otto Girzzi has been working as a journalist for the most imortant Italian motorsport magazines. He is the author of books on Moto Gilera, Moto Parilla, Moto BMW, MV Agusta F4, Ducati and Ducati Monster.Born in Florence in 1935, Roberto Patrihgnani began his career of journalist almost simultaneously with the activity of motorcycle racer. He is the author of the Italian best-seller 'Ti portero a Bray Hill' on the Tourist Trophy. He died in 2008.