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")

Dan Brown: The Robert Langdon Series

Main character: Robert Langdon, world-renowned professor of religious iconology and "symbology"
Setting: mainly USA, France, and Italy
Bold type indicates a book I've read.

1. Angels & Demons (2000) [see review]
2. The Da Vinci Code (2003)
3. The Lost Symbol (2009) [see review] 
4. Inferno (2013) 
5. Origin (2017) 

Alan Bradley: The Flavia de Luce Mysteries

Main character: Flavia de Luce, 11-year-old aspiring chemist and amateur sleuth who uses her scientific curiosity to solve mysteries.
Setting: England
Bold type indicates a book I've read.

1. The Sweetness at the Bottom of the Pie (2009)
2. The Weed That Strings the Hangman's Bag (2010)
3. A Red Herring Without Mustard (2011)
4. I Am Half-Sick of Shadows (2011)
5. Speaking from Among the Bones (2013)
6. The Dead in Their Vaulted Arches (2014)
7. As Chimney Sweepers Come to Dust (2015) 
8. Thrice the Brinded Cat Hath Mew'd (2016)
9. The Grave's a Fine and Private Place (2018) 
10. The Golden Tresses of the Dead (2019)