If you’re a fan of mystery and crime fiction, you’re likely on the hunt for the best detective novels series to sink your teeth into. With so many options, it can be difficult to know where to start. To help you out, we’ve compiled a list of some of the best detective novel series that you won’t want to miss.

1. Sherlock Holmes by Arthur Conan Doyle
   No list of detective novels would be complete without the legendary Sherlock Holmes series. The adventures of the brilliant detective and his faithful sidekick, Dr. Watson, have captivated readers for over a century. With clever mysteries, memorable characters, and a unique style of storytelling, these classic novels are a must-read for any fan of the genre.
2. Hercule Poirot by Agatha Christie
   Agatha Christie is one of the most beloved mystery writers of all time, and her Hercule Poirot series is a true classic. With its clever plots, surprising twists, and memorable characters, this series has been keeping readers guessing for decades. Whether you’re a longtime fan or just discovering Christie’s work, you won’t want to miss these timeless novels.
3. Inspector Gamache by Louise Penny
   If you’re looking for a more contemporary series, the Inspector Gamache novels by Louise Penny are an excellent choice. Set in the charming town of Three Pines, Quebec, these novels follow Chief Inspector Armand Gamache as he solves crimes and navigates the complicated relationships of the tight-knit community. With richly drawn characters and complex mysteries, this series is a standout in the genre.
4. Kinsey Millhone by Sue Grafton
   For fans of hard-boiled detective novels, the Kinsey Millhone series by Sue Grafton is a must-read. Set in California in the 1980s, these novels follow the adventures of Kinsey Millhone, a tough-as-nails private investigator with a sharp wit and a no-nonsense attitude. With intricate plots and memorable characters, this series is a classic of the genre.
5. Harry Bosch by Michael Connelly
   If you’re looking for a gritty, realistic take on detective fiction, the Harry Bosch series by Michael Connelly is a great choice. These novels follow Bosch, a detective with the LAPD, as he solves crimes and battles corruption in the department. With their intense, hard-hitting stories and complex characters, these novels are a must-read for fans of crime fiction.

No matter which of these series you choose to dive into, you’re sure to be captivated by the gripping mysteries, memorable characters, and richly detailed settings. So grab a cup of coffee, settle in, and get ready to solve some crimes with these best detective novels series.