Mary Angelou is the American author celebrated for her autobiography "I Know Why the Caged Bird Sings." Published in 1969, this work is notable for its candid exploration of racism, identity, and the struggles of growing up as a Black woman in America. Angelou's narrative style combined poetic language with personal experience, making it a cornerstone of American literature. The book has had a lasting impact, inspiring generations to confront social issues and embrace their own narratives.