Valentí studied illustration, comics and art in Barcelona, where he has lived most of his life. He has spent many years working as an illustrator of all kinds of projects, both children's and youth books and advertising, and has worked for all kinds of clients: BMW, Coca-Cola, Durex, an interactive show about Dalí, Metro Madrid, World Roller Games, F.C Barcelona, and even an NFT comic about the Metaverse.