"The originality of the picture book lies in the story itself, in how an event as normal as us waking up in the mornings, with our frizzed hair and our bear faces, becomes the funny story of a girl who lives the situation with horror, fearing to become a porcupine herself when she grows up. But this story wouldn’t be so great if not for Isol’s drawings. The mother’s hair, that frightening look on the girl’s face are the key to making us laugh. The drawings are made in pencil and colored with large stains of color that bring volume and help to imagine the spaces of each of the scenes."
— Susana Jiménez, Cuentos para Matilda.