About Isabel Muñoz Isabel Muñoz is an artist and a children's book illustrator. She is a Fine Arts graduate from Universidad Complutense of Madrid, Spain. Isabel works from a tiny colorful studio in the north of Spain. Books by Isabel Muñoz Nothing Could Stop Her The Courageous Life of Ruth Gruber by (author) Rona Arato illustrated by Isabel Muñoz Ages 8 to 12 Grades 3 to 6