6 Tips for Writing Thrillers

Diane Callahan
16 min readMar 18, 2022
Title: Writing Thriller Novels overlaid on a picture of a police evidence board

What makes a novel a thriller? What differentiates it from mystery or suspense?

I discussed these questions and more with fellow YouTuber Alexa Donne, who’s a thriller connoisseur and author of The Ivies, a YA boarding school thriller. Her upcoming thriller Pretty Dead Queens is all about small-town murder.

We cowrote these six tips for writing better thriller novels, from designing killer endings and plot twists to exploring the darker side of humanity through complex characters and themes.

Cover of The Maid by Nita Prose with the text “Mystery?” beneath; Cover of The Talented Mr. Ripley by Patricia Highsmith with the text “Thriller?” beneath; Cover of The Guest List by Lucy Foley with the text “Suspense?” beneath

As a genre, “thrillers” are a broad category, and the definition has changed over time. In the 80s, 90s, and early 2000s, the first authors to come to mind with thrillers were usually Tom Clancy and Dan Brown, along with Stieg Larsson’s runaway bestseller The Girl with the Dragon Tattoo.

Covers of The Hunt for Red October by Tom Clancy; The Da Vinci Code by Dan Brown; The Girl with the Dragon Tattoo by Stieg Larsson

A decade later, authors like Gillian Flynn and Paula Hawkins ignited a key subgenre of thrillers — domestic suspense and psychological suspense.

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