Collects what the author/artist considers to be the most significant "Mafalda" strips that appeared in newspapers and books during the ten years of Mafalda's life, including Felipe's anguish at schooltime; Susanita's gossip, as the neighborhood know-it-all; the stupidity of Manolito, the administrator, marketing specialist and heir to the prosperous Don Manolo grocery store; Miguelito and his eternal existential conflicts; and more.