Author Guide ·

Books Written by Agatha Christie

Christie is the best-selling novelist in history, and the reason is structural: she didn’t just write mysteries, she perfected the mechanics of the form — the closed circle of suspects, the fair-play clue planted in plain sight, the twist that recontextualizes everything you’d already read. Read enough of her and you start to see the engineering underneath the entertainment.

By Lisanne Swart · 5 books · Crime Fiction · Updated August 2026




01

Crime · Hercule PoirotOn my shelf

Murder on the Orient Express

Agatha Christie · 1934

A passenger is murdered aboard a snowbound train, and Hercule Poirot must solve the case from among a closed set of suspects who, it turns out, are all connected to the same earlier tragedy. One of the most structurally audacious solutions in the genre.

The plotting here is close to perfect — every clue is fairly presented, and the final solution reframes the entire moral premise of the book rather than just naming a culprit.

02

Crime · Standalone

And Then There Were None

Agatha Christie · 1939

Ten strangers are lured to an isolated island and murdered one by one, each death matching a line from a children’s nursery rhyme. Christie’s best-selling standalone novel and, by most accounts, the best-selling mystery novel ever written.

No detective, no comic relief — just pure mechanism. It remains the template for the ‘isolated group, someone among us is the killer’ structure used across the genre since.

03

Crime · Hercule Poirot

The Murder of Roger Ackroyd

Agatha Christie · 1926

A wealthy man is murdered in his study on the night he was about to be told the identity of his fiancée’s blackmailer. The solution was controversial on publication for breaking an unstated rule of the genre, and it remains one of the most audacious twists in crime fiction.

Essential reading for understanding what Christie was actually doing formally — she wasn’t just writing puzzles, she was testing the reader’s trust in the narrator itself.

04

Crime · Hercule Poirot

Death on the Nile

Agatha Christie · 1937

A wealthy heiress is murdered aboard a cruise down the Nile, and Poirot must untangle a web of jealousy and old grievances among the passengers. Considered one of Christie’s most elegantly constructed plots, with a solution that recasts the book’s opening chapters entirely.

The Egyptian setting gives Christie more room than usual, and the central relationship triangle is one of her more emotionally sophisticated setups.

05

Crime · Hercule Poirot

The ABC Murders

Agatha Christie · 1936

A serial killer taunts Poirot with letters before each murder, moving alphabetically through victims and locations. One of the earliest serial-killer novels in the genre, structured as a direct challenge between detective and murderer.

The alphabetical gimmick makes it one of her most accessible entry points, and the solution plays with reader assumptions about pattern and motive in a way that still feels sharp.

Frequently asked questions about Agatha Christie’s books

How many books did Agatha Christie write?
Agatha Christie wrote 66 detective novels and 14 short story collections, along with plays and romance novels published under the pseudonym Mary Westmacott. She remains the best-selling novelist of all time.
What is the best Agatha Christie book to start with?
Murder on the Orient Express or And Then There Were None — both are self-contained, don’t require familiarity with her recurring detectives, and showcase her plotting at its sharpest.
Is Hercule Poirot in all of Agatha Christie’s books?
No. Poirot appears in 33 novels and story collections, but Christie also wrote a separate detective series featuring Miss Marple, along with many standalone novels like And Then There Were None that feature no series detective at all.


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