135 books • 5 series
Book #7: Rome in Four Days
Book #8: Verona in One Day
Book #9: Ferrara
Book #10: Turin
Book #11: Milan
Book #2: One Day in Borromean Islands from Milan
Book #1: Cities and Courts In the Po Valley
Book #7: Rome to Florence
Book #12: Apulia
Book #13: Amalfi to Rome
Book #20: Cinque Terre, Florence, Umbria
Book #21: Naples, Capri, Ischia and Pompeii
Book #2: Venice to Bolzano - Adriatic and Venetian Civilization
Book #6: Sardinia
Book #15: Sicily
Book #26: Umbria