Mystery
Cozy mysteries, locked-room puzzles, police procedurals, psychological thrillers, and British detective fiction — the best books in the genre, sorted by what you actually want.
Mystery is the most broadly defined genre in fiction. At one end you have Agatha Christie's village murders, where everyone is slightly too polite and the detective is an eccentric with an inexplicable advantage. At the other end you have Dennis Lehane's Boston, where the crimes are real and the consequences last decades. Most of what sits between those two poles gets called mystery, and most of it is worth reading — you just need to know which type you're in the mood for.
The genre has exploded in the last decade, driven partly by the domestic thriller wave after Gone Girl (2012) and partly by the cozy mystery revival led by Richard Osman's Thursday Murder Club (2020). If you want a starting point: The Thursday Murder Club for something warm and funny, Gone Girl for something dark and psychological, or Tana French's In the Woods for something literary and atmospheric. All three are excellent and all three will tell you whether you want more of that specific flavour.
Cozy Mystery
Murders solved in pleasant settings by amateur detectives who are remarkably good at it. The tension is real but the violence stays offscreen. If you want to solve the puzzle more than experience the crime, this is your subgenre.
Psychological Mystery
Unreliable narrators, buried secrets, and endings that reframe everything. The subgenre that exploded after Gone Girl showed what was possible with a genuinely untrustworthy protagonist.
Literary & Procedural Mystery
The mystery novels that work as literature first and genre second. Complex characters, places that feel lived in, and crime that matters beyond the plot.
British Mystery
The tradition that invented the detective novel. From Agatha Christie to Anthony Horowitz — wit, setting, and a puzzle at the centre.