Biography -- Politics and government -- 20 Presidents -- 17 Politics and government 14 Statesmen -- 13 Biography 10 Foreign relations -- 10 more ... Heads of state -- 10 Prime ministers -- 10 Diplomats -- 8 History -- 8 History 7 Politicians -- 7 Journalists -- 4 Revolutionaries -- 4 World War -- 4 Ambassadors -- 3 Communists -- 3 Nationalists -- 3 World War, 1939-1945 -- 3 Civil rights workers -- 2 Cold War 2 Dictionaries -- 2 Diplomatic history 2 Explorers -- 2 Generals -- 2 Intelligence officers -- 2 Juvenile literature 2 Kings and rulers -- 2 Legislators -- 2 less ...