The Children’s Book Council (CBC) is teaming up with The unPrison Project, a nonprofit dedicated to mentoring incarcerated women to bring children’s books to mothers behind bars.

In honor of Mother’s Day, the organizations will build brand-new libraries for these mothers to read to babies at prison nurseries in 10 states: California, Illinois, Indiana, Ohio, Nebraska, New York, South Dakota, Washington, West Virginia, and Wyoming.

CBC member publishers have donated 45 hand selected books. The books are aimed at children ages 0-18 months and are aimed to help build mother-child reading relationships.