Six Dr. Seuss books will no longer be published. (WTTW News collage)

The work of the beloved children’s author is at the center of a controversy over racist and stereotypical depictions. Dr. Seuss Enterprises, which manages the author’s legacy, announced that six books would no longer be published because they “portray people in ways that are hurtful and wrong.”

It's not often you can see a letter written by George Washington, a limited edition Barbie doll and Groucho Marx's autograph -- all in one place. Eddie Arruza visits a new exhibit at the Northwestern University library.