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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Shadow Cell
Cover of Shadow Cell

Shadow Cell

Andrew Bustamante

Published 2025

272 pages

Over the wall
Cover of Over the wall

Over the wall

Will Britten

Published 2025

320 pages