The most popular intelligence & espionage books of 2025

Intelligence and espionage books tell the true stories of spies and secret services. Double agents, code-breakers, covert operations and famous betrayals are reconstructed from archives and interviews. If you enjoy spy novels, the real history is often stranger and just as gripping. This list shows the ones first published in 2025.

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Agent Zo
Cover of Agent Zo

Agent Zo

Clare Mulley

Published 2025

416 pages