Teaching your child how to read without a book is a problem for many American families. They simply can’t afford $5 or $10 for reading materials. But there’s an innovative after school program in New York City’s East Harlem overcoming that obstacle. It’s called Sister Power. It has an arrangement with book publishers to send them copies free of charge. Children love coming to the storefront’s library to read. And if they like the book, they can keep it. Alex Goldmark reports.