Every night when Sonia goes to bed, Mami asks her the same question: how did you help today? And since Sonia wants to help her community, just like her Mami does, she always makes sure she has a good answer to Mami's question. In a story inspired by her own family's desire to help others, Supreme Court Justice Sonia Sotomayor takes young readers on a journey through a neighborhood where kids and adults, activists and bus drivers, friends and strangers all help one another to build a better world for themselves and their community.