Within the broader mystery category are so many sub-genres that, in my opinion, there’s something for nearly every reader. Some, like the locked room mystery or whodunit, focus on a puzzle that the reader must untangle alongside the sleuth. Others, like hardboiled or courtroom mysteries, explore social issues and human nature in thought-provoking ways. And many mystery novels, even within these sub-genres I’ve mentioned here, accomplish both!
Whether you’re new to the genre or you want to explore it on a broader level, read on for a primer on the most popular mystery sub-genres. Along with a description of the sub-genre and its conventions, I’ve included an example recommendation with each one to get you started for sub-genres you haven’t explored yet.
As you read, keep in mind that some mystery novels may fall into multiple sub-genres categories. A book could, for example, be both a cozy mystery and a historical mystery if its set in a time period before the present day and describes no graphic violence.
But before I begin, let’s start with a quick definition of the mystery genre. Mystery novels feature stories in which the protagonist investigates a crime or unusual circumstance, usually but not always murder. They do so by interviewing suspects or witnesses and reviewing evidence, like the scene of the crime or items left behind by the culprit. The sleuth could be a professional detective, or they could be an amateur that uses seemingly unrelated skills from their personal or work lives to solve crimes.
Hardboiled Mystery
Hardboiled mysteries star detectives solving a crime within a corrupt system. While often set in the early 20th century, hardboiled novels can take place in a contemporary or even speculative setting.