Born in Sclafani Bagni, Sicily, Geraci graduated from the Rotterdam Academy of Fine Arts in Rotterdam, Netherlands in fine arts and sculpture, spending a year of his studies at the Brera Academy of Fine Arts in Milan, Italy.
He currently lives and works in the Sicilian town of Cefalù.
Since graduating, Geraci has become well known for his sculpture, working mainly in bronze. Many of his works are symbolic, drawing on the lessons of mythology, promoting humanity, and frequently take the form of circular plaques or medallions, small and large.
Works include the 1.9 m (6 ft) diameter bronze plaque at Palermo International Airport in memory of anti-mafia judges Giovanni Falcone and Paolo Borsellino, and a 9 m high statue of Saint Pio of Pietrelcina at Poggio Maria, Cefalù.
- Italian Art Triennial of the coin, Volumes 3-5. Loggia del Lionello. 1973. Retrieved 11 February 2011.
- "GERACI Tommaso: Cavaliere dell'Ordine della Stella d'Italia (già Stella della solidarietà italiana)". Presidenza della Repubblica. Retrieved 7 September 2014.
- "Monument voor het Ruimtetijdperk". Retrieved 7 September 2014.