Spymaster: My Thirty two Years in Intelligence and Espionage Against the West

Georgetown University Press

Intelligence Elsewhere: Spies and Espionage Outside the Anglosphere

Random House Books for Young Readers

Her Majesty's Spymaster: Elizabeth I, Sir Francis Walsingham, and the Birth of Modern Espionage

Routledge

Intelligence and Espionage: Secrets Spies (Seminar Studies)

Cambridge University Press

Intelligence and Espionage (Cambridge Studies in Early Modern British History)