DAVID GREENE, HOST:
This is MORNING EDITION from NPR News. Good morning, I'm David Greene.
RENEE MONTAGNE, HOST:
And I'm Renee Montagne with an opportunity for publishers. Some 45 states and the District of Columbia have now signed onto the new Common Core education standards. And that will draw in not just companies that make textbooks and teaching materials, but also publishers of children's books - novels, nonfiction, the kind of books people read for pleasure.