Racism is not innate but emerges under special conditions, says the King's College professor and author of the sweeping history Racisms: From the Crusades to the Twentieth Century. He chooses five books that inspired him.
The best presidential biographies contain insights into both the personal and the political, says the historian HW Brands. So which presidential biographers does he rate highly?
The historian chooses five books illustrating how concepts of American liberalism have changed over the past 50 years, and tells us about the tension that lies at the heart of liberalism today