Chefs d'État Heads of state 159 HISTORY 92 Politics and government 71 Politique et gouvernement 67 BIOGRAPHY & AUTOBIOGRAPHY 58 History 58 Histoire 52 Historical 52 General 30 POLITICAL SCIENCE 21 Generals 18 Psychology 15 Généraux 14 Leadership 13 Political leadership 13 Psychologie 13 Psychological aspects 12 National socialism 11 Nazisme 11 Succession 11 Russia & the Former Soviet Union 10 Dictators 9 Modern 9 Reference 9 Diplomatic relations 8 Eastern 8 Foreign relations 8 Former Soviet Republics 8 Military 8