“A comprehensive exploration of spying in its myriad forms from the Bible to the present day . . . Easy to dip into, and surprisingly funny.” —Ben Macintyre in The New York Times Book Review The history of espionage is far older than any of today’s intelligence agencies, yet largely forgotten. The codebreakers at Bletchley Park, the most successful WWII intelligence agency, were completely unaware that their predecessors had broken the codes of Napoleon during the Napoleonic wars and those of Spain before the Spanish Armada. Those who do not understand past mistakes are likely to repeat them. Intelligence is a prime example. At the outbreak of WWI, the grasp of intelligence shown by US President Woodrow Wilson and British Prime Minister Herbert Asquith was not in the same class as that of George Washington during the Revolutionary War and eighteenth-century British statesmen. In the first global history of espionage ever written, distinguished historian and New York Times–bestselling author Christopher Andrew recovers much of the lost intelligence history of the past three millennia—and shows us its continuing relevance. “Accurate, comprehensive, digestible and startling . . . a stellar achievement.” —Edward Lucas, The Times “For anyone with a taste for wide-ranging and shrewdly gossipy history—or, for that matter, for anyone with a taste for spy stories—Andrew’s is one of the most entertaining books of the past few years.” —Adam Gopnik, The New Yorker “Remarkable for its scope and delightful for its unpredictable comparisons . . . there are important lessons for spymasters everywhere in this breathtaking and brilliant book.” —Richard J. Aldrich, Times Literary Supplement “Fans of Fleming and Furst will delight in this skillfully related true-fact side of the story.” —Kirkus Reviews “A crowning triumph of one of the most adventurous scholars of the security world.” —Financial Times Includes illustrations