Gruber has also worked for the Italian daily newspaper La Stampa, and for "Io Donna", the women's magazine of Italy's leading newspaper Corriere della Sera, and for magazines TV Sorrisi e Canzoni and Anna.
Known in his first comic at Mondadori's Il Mago under the pseudonym "Winslow Leech", he has worked for Re Nudo and Il Mago, Radio Alice of Bologna, Cannibale, Il Male, Frigidaire, Blue, Panorama, TV Sorrisi e Canzoni and Glamour International.
“I Fauni” a group that took part in a competition held by the magazine "TV Sorrisi e Canzoni" in the city of Rapallo (Genoa) coming in second place.