Berlin: Life and Death in the City at the Center of the World
2022
The Fire and the Darkness
2020
The Spies of Winter: The GCHQ Codebreakers Who Fought the Cold War (Unabridged)
2017
Saint Petersburg : Sacrifice and Redemption in the City that Defied Hitler
2026
The Secret Lives Codebreakers : The Men and Women Who Cracked the Enigma Code at Bletchley Park
2013
The Lady in the Cellar: Murder, Scandal and Insanity in Victorian Bloomsbury
2019