Cynthia Orensztajn was born in 1973 in Buenos Aires, Argentina.

In 1998 she graduated as a graphic designer at the University of Buenos Aires. She worked as a designer for several design studios and advertising agencies until, in 2008, she became interested in children's illustration. 

She studied Illustration with Istvansch, Edgar Ródez, Claudia Legnazzi and Mirela Musri and is member of the Argentinian Children's Ilustrator’s Forum.

Actually she works for publishers like Random House Mondadori, Sigmar and Edelvives.