He published a number of esteemed treatises on various astronomical and mathematical subjects, the most well-known of which was a treatise on the sundial called Opus de compositione et usu multiformium horologiorum solarium, pro diversis mundi regionibus, idq(ue) ubique locorum tam in superficie plana horizontali quam murali quoruscumqu(ue) exposita sit, pertractans (Venice, 1570).
Don Giovanni | Giovanni Pierluigi da Palestrina | Giovanni Bellini | Giovanni Riggi | Giovanni Boccaccio | Giovanni Battista Pergolesi | Giovanni Battista Tiepolo | Giovanni Battista Guarini | Giovanni | Giovanni Trapattoni | Giovanni "John the Eagle" Riggi | Giovanni Gabrieli | Giovanni Falcone | Villa San Giovanni | San Giovanni in Persiceto | Giovanni Verga | Giovanni van Bronckhorst | Giovanni Tamagno | Giovanni Pacini | Giovanni Battista Pescetti | Giovanni Papini | Giovanni Hidalgo | Giovanni Domenico Cassini | Giovanni de' Medici | Giovanni Bottesini | Giovanni Battista Riccioli | Giovanni Zenatello | Giovanni Visconti | Giovanni Schiaparelli | Giovanni Pisano |