Hercule Poirot is a 52-book series with 42 primary works first released in 197 with contributions by Agatha Christie, Agatha Christie, and 4 others.
1947 • 28 Readers • 9 pages • 3.4
1940 • 31 Readers • 240 pages • 3.4
1953 • 29 Readers • 213 pages • 3.9
1955 • 4 Readers • 200 pages • 3.5
1969 • 5 Readers • 259 pages • 2.5
1974 • 12 Readers • 8 pages • 3.5
1991 • 10 Readers • 227 pages
1997 • 8 Readers • 300 pages • 2.5
1960 • 1 Reader • 208 pages • 3