Niall Ferguson, explains how those at the top of the towers of power have been overstated, and the influence of "the social networks down below, in the town squares" has been underestimated.

Includes bibliographical references (pages 436-536) and index.

Part I. Introduction : Networks and hierarchies -- The mystery of the Illuminati -- Our networked age -- Networks, networks everywhere -- Why hierarchies? -- From seven bridges to six degrees -- Weak ties and viral ideas -- Varieties of network -- When networks meet -- Seven insights -- The Illuminati illuminated -- Part II. Emperors and explorers -- A brief history of hierarchy -- The First Networked Age -- The art of the Renaissance deal -- Discoverers -- Pizarro and the Inca -- When Gutenberg met Luther -- Part III. Letters and lodges : The economic consequences of the Reformation -- Trading ideas -- Networks of Enlightenment -- Networks of revolution -- Part IV. The restoration of hierarchy : The red and the black -- From crowd to tyranny -- Order restored -- The house of Saxe-Coburg-Gotha -- The house of Rothschild -- Industrial networks -- From pentarchy to hegemony -- Part V. Knights of the Round Table : An imperial life -- Empire ; Taiping -- 'The Chinese must go' -- The Union of South Africa -- Apostles -- Armageddon -- Part VI. Plagues and pipers : Greenmantle -- The plague -- The leader principle -- The fall of the golden international -- The ring of five ; Brief encounter -- Ella in reform school -- Part VII. Own the jungle : The long peace -- The general -- The crisis of complexity -- Henry Kissinger's network of power -- Into the valley -- The fall of the Soviet Empire -- The triumph of Davos Man -- Breaking the Bank of England -- Part VIII. The Library of Babel : 9/11/2001 -- 9/15/2008 -- The administrative state -- Web 2.0 -- Coming apart -- Tweeting the revolution -- 11/9/2016 -- Part IX. Conclusion : facing Cyberia -- Metropolis -- Network outage -- FANG, BAT and EU -- The square and the tower redux -- Afterword : The original square and tower.