Artiklar & Essäer
1930-talet
1930:
The Crime Passionnel 1930 (Britannia and Eve)
1931:
What I Would Do if I Were Starving 1931 (Britannia and Eve)
1938:
Hercule Poirot: Fiction's Greatest Detective 1938 (Daily Mail)
How I Became a Writer 1938 (The Listener)