Who is Maya Angelou?

I hear that she is Oprah's friend. And we know that she is a poet because today we listened to one of the poems that she has written - Caged Bird. Now I know why Maya Angelou's autobiography is called "I Know Why the Caged Bird Sings". And I've discovered that she has been quoted as saying that "A bird doesn't sing because it has an answer, it sings because it has a song!" For more information on this amazing woman, see her official website: Maya Angelou: Global Renaissance Woman. The poem that I read today can be found on a website by The Poetry Foundation.