Double Cross in Cairo uncovers the heroic exploits of one of the Second World War's most closely guarded secrets.

Signal intelligence is the most secret, and most misunderstood, weapon in the modern espionage arsenal. As a reliable source of information, it is unequalled, which is why Government Communications Headquarters, almost universally known as GCHQ, is severa

Written by a renowned expert in the field, this is the full story of the UK's Secret Intelligence Service, more commonly known as MI6, from its formation in 1909.

A compendium of undercover warfare from around the world, featuring spies, soldiers, mercenaries and assassins. The secret history of 20th- and 21st-century warfare.

An astonishing examination of previously celebrated spies.