Saturdays and Sundays are very special days for the child in this story. On Saturdays, she visits Grandma and Grandpa, who come from a European-American background, and on Sundays — los domingos — she visits Abuelito y Abuelita, who are Mexican-American. While the two sets of grandparents are different in many ways, they also have a great deal in common — in particular, their love for their granddaughter.