Alan Furst: Night Soldiers Series

● Main characters: With a few exceptions, each book has a different set of main characters
● Setting: Europe, in the years leading up to and during World War II
● Bold type indicates a book I've read

1. Night Soldiers  (1988)
2. Dark Star  (1991)
3. The Polish Officer  (1995)
4. The World at Night  (1996)
5. Red Gold  (1999)
6. Kingdom of Shadows  (2000)
7. Blood of Victory  (2003)
8. Dark Voyage  (2004)
9. The Foreign Correspondent  (2006)
10. The Spies of Warsaw  (2008)
11. Spies of the Balkans  (2010)
12. Mission to Paris  (2012)
13. Midnight in Europe  (2014)
14. A Hero of France  (2016)
15. Under Occupation (2019) 

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Len Deighton: Bernard Samson Novels

Main character: Bernard Samson, a British intelligence officer working for the Secret Intelligence Service (SIS).
Setting: England, Europe, Latin America
The novels were issued as three sets of trilogies, plus one "prequel."
Bold type indicates a book I've read.

Berlin Game (1983)
Mexico Set (1984)
London Match (1985)

Winter (1987)

Spy Hook (1988)
Spy Line (1989)
Spy Sinker (1990)

Faith (1994)
Hope (1995)
Charity (1996)

Len Deighton: The "Unnamed Hero" Series

Main Character: An anonymous secret agent (named "Harry Palmer" in the film adaptations)
Setting: England, Europe and USA
Bold type indicates a book I've read.

The IPCRESS File (1962)
Horse Under Water (1963)
Funeral in Berlin (1964)
Billion Dollar Brain (1966)
An Expensive Place to Die (1967)
Spy Story (1972)
Yesterday's Spy (1975)
Twinkle, Twinkle, Little Spy (1976), aka: Catch a Falling Spy