Charles Todd: Inspector Ian Rutledge Mysteries

• Main Characters: Inspector Ian Rutledge, a veteran of the First World War who has returned to the police force as a detective but is battling with "shell shock" (what would be called post-traumatic stress disorder today). 
• Setting: Mostly England, in the years following World War I.
• Bold type indicates a book I've read. 

"Charles Todd" is the pen name used by the mother/son writing team of Caroline and Charles Todd. 

1. A Test of Wills (1994) 
2. Wings of Fire (1998)
3. Search the Dark (1999) 
4. Legacy of the Dead (2000) 
5. Watchers of Time (2001) 
6. A Fearsome Doubt (2002) 
7. A Cold Treachery (2005) 
8. A Long Shadow (2006) 
9. A False Mirror (2007) 
10. A Pale Horse (2008) 
11. A Matter of Justice (2008) 
12. The Red Door (2009) 
13. A Lonely Death (2011) 
14. The Confession (2012) 
15. Proof of Guilt (2013) 
16. Hunting Shadows (2014) 
17. A Fine Summer's Day (2015) 
18. No Shred of Evidence (2016) 
19. Racing the Devil (2017) 
20. The Gate Keeper (2018) 
21. The Black Ascot (2019) 
22. A Divided Loyalty (2020) 
23. A Fatal Lie (2021) 
24. A Game of Fear (2022) 

...........

Louise Penny: Chief Inspector Armand Gamache

• Main character: Chief Inspector Armand Gamache of Sûreté du Québec, the provincial police force for Quebec
• Setting: Canada, mostly in and around the small Québécois town of Three Pines
• Bold type indicates a book I've read.

1. Still Life (2005)
2. A Fatal Grace (2006) 
3. The Cruelest Month (2007) 
4. A Rule Against Murder (2008) 
5. The Brutal Telling (2009)
6. Bury Your Dead (2010) 
7. A Trick of the Light (2011)
8. The Beautiful Mystery (2012) 
9. How the Light Gets In (2013) 
10. The Long Way Home (2014) 
11. The Nature of the Beast (2015) 
12. A Great Reckoning (2016)
13. Glass Houses (2017) 
14. Kingdom of the Blind (2018) 
15. A Better Man (2019)
16. All the Devils Are Here (2020) 
17. The Madness of Crowds (2021) 
18. A World of Curiosities (2022)
19. The Grey Wolf (2024) 
20. The Black Wolf (2025) 

In addition to the full-length novels, there has also been one novella (or long short story) issued:

1. The Hangman (2010)

......

Anne Perry: William Monk Mysteries

• Main characters: William Monk, investigator (sometimes with the police force, sometimes working privately); and his wife Hester, formerly a Crimean War nurse.
• Setting: Victorian England
Bold type indicates a book I've read.

1. The Face of a Stranger (1990)
2. A Dangerous Mourning (1991)
3. Defend and Betray (1992)
4. A Sudden, Fearful Death (1993)
5. The Sins of the Wolf (1994)
6. Cain His Brother (1995)
7. Weighed in the Balance (1996)
8. The Silent Cry (1997)
9. A Breach of Promise (aka: Whited Sepulchres) (1997)
10. The Twisted Root (1999)
11. Slaves of Obsession (aka: Slaves and Obsession) (2000)
12. A Funeral in Blue (2001)
13. Death of a Stranger (2002)
14. The Shifting Tide (2004)
15. Dark Assassin (2006)
16. Execution Dock (2009)
17. Acceptable Loss (2011)
18. A Sunless Sea (2012)
19. Blind Justice (2013)
20. Blood on the Water (2014)
21. Corridors of the Night (2015)
22. Revenge in a Cold River (2016)
23. An Echo of Murder (2017)
24. Dark Tide Rising (2018)

......

Anne Perry: Charlotte and Thomas Pitt Mysteries

• Main characters: Thomas Pitt, a police inspector (later, superintendent), and his wife Charlotte
• Setting: Victorian London
• Bold type indicates a book I've read.

1. The Cater Street Hangman (1979)
2. Callander Square (1980)
3. Paragon Walk (1981)
4. Resurrection Row (1981)
5. Rutland Place (1983)
6. Bluegate Fields (1984)
7. Death in the Devil's Acre (1985)
8. Cardington Crescent (1987)
9. Silence in Hanover Close (1988)
10. Bethlehem Road (1990)
11. Highgate Rise (1991)
12. Belgrave Square (1992)
13. Farrier's Lane (1993)
14. The Hyde Park Headsman (1994)
15. Traitors Gate (1995)
16. Pentecost Alley (1996)
17. Ashworth Hall (1997)
18. Brunswick Gardens (1998)
19. Bedford Square (1999)
20. Half Moon Street (1998)
21. The Whitechapel Conspiracy (2001)
22. Southampton Row (2002)
23. Seven Dials (2003)
24. Long Spoon Lane (2005)
25. Buckingham Palace Gardens (2008)
26. Betrayal at Lisson Grove (US title: Treason at Lisson Grove) (2011)
27. Dorchester Terrace (2012)
28. Midnight at Marble Arch (2013)
29. Death on Blackheath (2014)
30. The Angel Court Affair (2015)
31. Treachery at Lancaster Gate (2016)
32. Murder on the Serpentine (2016)

......

John Verdon: Dave Gurney Mysteries

● Main character: Retired NYPD homicide detective, Dave Gurney, known for catching serial killers
● Setting: Mainly upstate New York, although the various stories do move around
● Bold type indicates a book I've read

1. Think of a Number  (2010)
2. Shut Your Eyes Tight  (2011)
3. Let the Devil Sleep  (2012)
4. Peter Pan Must Die  (2014)
5. Wolf Lake  (2016)
6. White River Burning  (2018) 
7. On Harrow Hill  (2021) 
8. The Viper (2023) 

........

Lynn Shepherd: Charles Maddox Mysteries

● Main Character: Charles Maddox, former police officer now working as a private investigator (or "thief-taker") in Victorian London
● Setting: 19th Century England, mostly London and environs
● Bold type indicates a book I've read

1. Murder at Mansfield Park  (2010) 
2. The Solitary House  (2012) 
3. A Fatal Likeness  (2013) 
4. The Pierced Heart  (2014) 

Becky Masterman: Brigid Quinn

● Main character: Brigid Quinn, an ex-FBI agent pushed into early retirement
● Setting: Tucson, AZ
● Bold type indicates a book I've read.

1. Rage Against the Dying  (2012)
2. Fear the Darkness  (2014)
3. A Twist of the Knife  (2017) 
4. We Were Killers Once  (2019)

Colin Watson: Flaxborough Mysteries

● Main character: Detective Inspector Walter Purbright
● The fictional town of Flaxborough, in East Anglia
● Bold type indicates a book I've read

1. Coffin, Scarcely Used  (1958)
2. Bump in the Night  (1960)
3. Hopjoy Was Here  (1962)
4. Lonelyheart 4122  (1967)
5. Charity Ends at Home  (1968) 
6. Just What the Doctor Ordered  (1969) 
7. Broomsticks Over Flaxborough  (1972) 
8. Six Nuns and a Shotgun  (1975) 
9. It Shouldn't Happen to a Dog  (1977) 
10. Blue Murder  (1979) 
11. Plaster Sinners  (1980) 
12. Whatever's Been Going On at Mumblesby?  (1982) 

Alan Hunter: Chief Inspector George Gently

● Main character: Police Inspector (later Chief Inspector) George Gently
● Setting: Primarily England's East Anglia
● Bold type indicates a book I've read

[These novels are the basis for the popular "Inspector Gently" BBC-TV series. However, the TV version is (in general) quite different from the books. And while the TV show is a classic "whodunnit", the books are basically police procedurals, with the focus more on character than plot.]

1. Gently Does It (1955)
2. Gently by the Shore (1956)
3. Gently Down the Stream (1957)
4. Landed Gently (1957)
5. Gently Through the Mill (1958)
6. Gently in the Sun (1959)
7. Gently with the Painters (1960)
8. Gently to the Summit (1961)
9. Gently Go Man (1961)
10. Gently Where the Roads Go (1962)
11. Gently Floating (1963)
12. Gently Sahib (1964)
13. Gently with the Ladies (1965)
14. Gently North-West (1967)
15. Gently Continental (1967)
16. Gently Coloured (1969)
17. Gently with the Innocents (1970)
18. Gently at a Gallop (1971)
19. Vivienne: Gently Where She Lay (1972)
20. Gently French (1973)
21. Gently in Trees (1974)
22. Gently with Love (1975)
23. Gently Where the Birds Are (1976)
24. Gently Instrumental (1977)
25. Gently to a Sleep (1978)
26. The Honfleur Decision (1980)
27. Gabrielle’s Way (1981)
28. Fields of Heather (1981)
29. Gently Between Tides (1982)
30. Amorous Leander (1983)
31. The Unhung Man (1984)
32. “Once a Prostitute...” (1984)
33. The Chelsea Ghost (1985)
34. Goodnight, Sweet Prince (1986)
35. Strangling Man (1987)
36. Traitor's End (1988)
37. Gently with the Millions (1989)
38. Gently Scandalous (1990)
39. Gently to a Kill (1991)
40. Gently Tragic (1992)
41. Gently in the Glens (1993)
42. Bomber’s Moon (1994)
43. Jackpot! (1995)
44. The Love of Gods (1997)
45. Over Here (1998)
46. Gently Mistaken (1999)

Rex Stout: The Nero Wolfe Mysteries

• Main characters:  Reclusive "armchair" sleuth Nero Wolfe; his assistant Archie Goodwin; Fritz Brenner, Wolfe's cook, butler, and all-around overseer; Theodore Horstmann, the orchid expert who tends to Wolfe's beloved plants
• Setting: Mainly Manhattan, but they do occasionally go further afield
• Bold type indicates a book I've read.

Novels:

1. Fer-de-Lance (1934) [see review]
2. The League of Frightened Men (1935)
3. The Rubber Band (1936)
4. The Red Box (1937)
5. Too Many Cooks (1938)
6. Some Buried Caesar (1939)
7. Over My Dead Body (1940)
8. Where There's a Will (1940)
9. The Silent Speaker (1946)
10. Too Many Women (1947)
11. And Be a Villain (1948) aka: More Deaths Than One
12. The Second Confession (1949)
13. In the Best Families (1950) aka: Even in the Best Families
14. Murder by the Book (1951)
15. Prisoner's Base (1952) aka: Out Goes She
16. The Golden Spiders (1953)
17. The Black Mountain (1954)
18. Before Midnight (1955)
19. Might as Well Be Dead (1956)
20. If Death Ever Slept (1957) 
21. Champagne for One (1958)
22. Plot It Yourself (1959) aka: Murder in Style
23. Too Many Clients (1960)
24. The Final Deduction (1961)
25. Gambit (1962)
26. The Mother Hunt (1963)
27. A Right to Die (1964)
28. The Doorbell Rang (1965)
29. Death of a Doxy (1966)
30. The Father Hunt (1968)
31. Death of a Dude (1969)
32. Please Pass the Guilt (1973)
33. A Family Affair (1975)

Books of short stories and novellas:

1. Black Orchids (1942; contains "Black Orchids" and "Cordially Invited to Meet Death")
2. Not Quite Dead Enough (1944; contains "Not Quite Dead Enough" and "Booby Trap")
3. Trouble in Triplicate (1949; contains "Before I Die", "Help Wanted, Male" and "Instead of Evidence")
4. Three Doors to Death (1950; contains "Man Alive", "Omit Flowers" and "Door to Death")
5. Curtains for Three (1951; contains "The Gun with Wings", "Bullet for One" and "Disguise for Murder")
6. Triple Jeopardy (1952; contains "Home to Roost", "The Cop-Killer" and "The Squirt and the Monkey")
7. Three Men Out (1954; contains "Invitation to Murder", "The Zero Clue" and "This Won't Kill You")
8. Three Witnesses (1956; contains "The Next Witness", "When a Man Murders" and "Die Like a Dog")
9. Three for the Chair (1957; contains "A Window for Death", "Immune to Murder" and "Too Many Detectives")
10. And Four to Go (1958; contains "Christmas Party", "Easter Parade", "Fourth of July Picnic" and "Murder Is No Joke")
11. Three at Wolfe's Door (1960; contains "Poison à la Carte", "Method Three for Murder" and "The Rodeo Murder")
12. Homicide Trinity (1962; contains "Eeny Meeny Murder Mo", "Death of a Demon" and "Counterfeit for Murder")
13. Trio for Blunt Instruments (1964; contains "Kill Now—Pay Later", "Murder Is Corny" and "Blood Will Tell")
14. Death Times Three (1985; posthumous; contains "Bitter End", "Frame-Up for Murder" and "Assault on a Brownstone")

Raymond Chandler: Philip Marlowe Mysteries

Main Character: Private detective Philip Marlowe
Setting: California, mainly Los Angeles
Bold type indicates a book I've read.

The Big Sleep (1939)
Farewell, My Lovely (1940)
The High Window (1942)
The Lady in the Lake (1943)
The Little Sister (1949)
Trouble Is My Business (1950) (short fiction: four-story collection)
The Long Goodbye (1954) (Edgar Award for Best Novel, 1955)
Playback (1958)
Poodle Springs (1959) (incomplete; completed by Robert B. Parker in 1989)

Josephine Tey: Inspector Alan Grant Mysteries

Josephine Tey is the pseudonym of Elizabeth MacKintosh, who also published under the name of Gordon Daviot.
Main Character: Inspector Alan Grant of Scotland Yard
Setting: England and Scotland
Bold type indicates a book I've read.

The Man in the Queue (1929), writing as Gordon Daviot
A Shilling for Candles (1936)
The Franchise Affair (1948)
To Love and Be Wise (1950)
The Daughter of Time (1951)
The Singing Sands (1952)

Agatha Christie: The Hercule Poirot Mysteries

Main Character: Hercule Poirot, Belgian private investigator
Setting: mostly England
Bold type indicates a book I've read.

The Mysterious Affair at Styles (1920)
Murder on the Links (1923)
Poirot Investigates (1924)
The Murder of Roger Ackroyd (1926)
The Big Four (1927)
The Mystery of the Blue Train (1928)
Peril at End House (1932)
Thirteen at Dinner (1933)
Murder on the Orient Express (1934), aka: Murder in the Calais Coach
Murder in Three Acts (1935)
Death in the Air (1935), aka: Death in the Clouds
The A.B.C. Murders (1935)
Murder in Mesopotamia (1936)
Cards on the Table (1936) Poirot / Ariadne Oliver  [see review]
Poirot Loses a Client (1937), aka: Dumb Witness
Death on the Nile (1937)
Dead Man's Mirror (1937)
Appointment With Death (1938)
A Holiday for Murder (1938), aka: Murder for Christmas
The Regatta Mystery (1939)
Sad Cypress (1940)
The Patriotic Murders (1940)
An Overdose of Death (1940), aka: One, Two, Buckle My Shoe
Evil Under the Sun (1941)
Murder in Retrospect (1943), aka: Five Little Pigs (1942)
Murder After Hours (1946)
The Labours of Hercules (1947)
There is a Tide (1948), aka: Taken at the Flood 
Witness for the Prosecution & Other Stories (1948)
Mousetrap & Other Stories (1950)
The Underdog and Other Stories (1951)
Mrs. McGinty's Dead (1952) Poirot / Ariadne Oliver
Funerals Are Fatal (1953), aka: After the Funeral
Hickory, Dickory, Death (1955)
Dead Man's Folly (1956) Poirot / Ariadne Oliver
Cat Among the Pigeons (1959)
The Adventure of the Christmas Pudding (1960)
Double Sin and Other Stories (1961)
The Clocks (1963)
Third Girl (1966) Poirot / Ariadne Oliver
Hallowe'en Party (1969) Poirot / Ariadne Oliver
Elephants Can Remember (1972) Poirot / Ariadne Oliver [see review]
Hercule Poirot's Early Cases (1974)
Curtain (1975)

Agatha Christie: The Superintendent Battle Mysteries

Main Character: Scotland Yard's Superintendent Battle. To be accurate, Superintendent Battle is not so much a main character as he is a unifying element in this series of books. He also appears in the Hercule Poirot mystery, Cards on the Table.
Setting: England
Bold type indicates a book I've read.

The Secret of Chimneys (1925)
The Seven Dials Mystery (1929)
Murder is Easy (1939), aka: Easy to Kill
Towards Zero (1944), aka: Come and Be Hanged