In the end, we will remember not the words of our enemies, but the silence of of our friends.
Martin Luther King Jr. was an American clergyman, activist, and prominent leader in the African-American Civil Rights Movement. The rights he fought for and the issues he stood up for maintain their permanent places in American history.
Some recommended readings related to his life and his achievements include:
The Autobiography of Martin Luther King, Jr.
Speeches By Martin Luther King: The Ultimate Collection
A Call to Conscience: The Landmark Speeches of Dr. Martin Luther King, Jr.
Martin Luther King Jr. - I Have a Dream
A Picture Book of Martin Luther King, Jr. (Picture Book Biography)