Cartoonist commonly known simply as "Nik" who is most famous for creating the cat character Gaturro, who has inspired numerous comic books and novels. He has been a regular contributor to newspapers like El Cronista and La Nación.
He published his first drawing in Patoruzú de Oro magazine at age 14.
He received the Konex Platinum Award for Best Cartoonist.
He has daughters.
He and Liniers are two of Argentina's most famous cartoonists.