Dorothy L. Sayers books in order
39 books in the catalogue, about 255 hours of reading in all; the shortest takes 37 minutes and the longest 19 hours.
1 series and 29 standalone books in the catalogue.
Lord Peter Wimsey mysteries
21 books 1 
Whose Body? 3.9 h 
Unnatural Death 5.3 h 4 
The Unpleasantness at the Bellona Club 4.7 h 
Lord Peter Views the Body 5.3 h 5 
Strong Poison 4.8 h 
Have His Carcase 6.4 h 
The Nine Tailors 6.2 h 10 
Gaudy Night 8.6 h 11 
Busman's Honeymoon 7.3 h
Whose Body? 3.9 h 2 Clouds of Witness length not known
3 Unnatural Death 5.3 h 4 The Unpleasantness at the Bellona Club 4.7 h Lord Peter Views the Body 5.3 h 5 Strong Poison 4.8 h 6 Five Red Herrings length not known
The Incredible Elopement of Lord Peter Wimsey length not known
7 Have His Carcase 6.4 h 8 Murder Must Advertise length not known
The Image in the Mirror length not known
9 The Nine Tailors 6.2 h 10 Gaudy Night 8.6 h 11 Busman's Honeymoon 7.3 h Lord Peter length not known
Striding Folly length not known
Thrones, Dominations length not known
Hangman's Holiday length not known
In the Teeth of the Evidence length not known
The Wimsey Family length not known
The Wimsey Papers length not known
Standalone books
The Man Born to Be King 6.3 h 
Clouds of Witness 5.3 h 
The Omnibus of Crime 19.2 h 
The Documents in the Case 5.0 h 
The Floating Admiral 5.7 h 
Have His Carcase 8.2 h 
Ask A Policeman 5.7 h 
Hangman's Holiday 3.7 h 
Murder Must Advertise 6.3 h 
The Third Omnibus of Crime 14.8 h 
Six Against the Yard 5.6 h 
The Anatomy of Murder 6.3 h 
In the Teeth of the Evidence 4.6 h 
The Mind of the Maker 4.1 h 
Essays Presented to Charles Williams 2.7 h 
The Lost Tools of Learning 37 min 
Christian Letters to a Post-Christian World 5.1 h 
Are Women Human? 1.3 h 
Lord Peter 9.0 h 
Great Short Stories of the World 14.7 h 
Striding Folly 2.3 h 
The Detective Story 8.1 h 
The Best Horror Stories (2 editions) 13.8 h 
The Twelve Crimes of Christmas 4.7 h 
Four Complete Lord Peter Wimsey Novels 13.5 h 
Murder Most Foul 6.5 h 
Country House Murders 6.8 h 
Purr-Fect Crime 5.1 h 
Detective Stories 4.1 h Collected editions
Volumes that gather several of the books above.