After his artistic studies, Valerio Held went to work for Luciano Gatto's studios. There, he drew some stories of Rolf Kauka's Fix und Foxi for the German market, and he inked some of Gatto's Disney comics. He also cooperated on the inking of Romano Scarpa's 'Paperolimpiadi' mini-series in cooperation with Maurizio Amendola, Sandro Del Conte and Luciano Gatto. In 1989, he started doing stories on his own. He has been a regular contributor of 'Duck' stories for Topolino since. In the late 1990s, his work was mainly featured in the Disney MEGAzine. Held illustrated several 'Horace Horsecolar' gags, as well as 'Beagle Boys', 'Duck' and 'Chief O'Hara' stories for the magazine. When the magazine folded, he returned to Topolino magazine.