Best Mystery Book Series

The best mystery book series ranked by average reader rating — detectives and sleuths worth following from case to case.

Mystery series are the genre's greatest strength — the best detectives and investigators get better with every case. This list ranks mystery book series by average reader rating across all installments, so a series that maintains quality across every book outranks one that peaks early and fades.

Every series here has at least 3 books in our catalog. These are the mystery series readers come back to again and again — clever plotting, satisfying reveals, and characters worth spending dozens of books with.

  1. 1
    Renée Ballard series cover

    Renée Ballard

    by Michael Connelly

    52h 20m total 5 books 4.65 avg
  2. 4
    The Lincoln Lawyer series cover

    The Lincoln Lawyer

    by Michael Connelly

    47h 45m total 4 books 4.57 avg
  3. 7
    Detective Erika Foster series cover

    Detective Erika Foster

    by Robert Bryndza

    27h 6m total 3 books 4.39 avg
  4. 9
    Thursday Murder Club series cover

    Thursday Murder Club

    by Richard Osman

    37h 55m total 3 books 4.35 avg
  5. 13
    Sid Halley Mystery series cover

    Sid Halley Mystery

    by Dick Francis

    41h 19m total 4 books 4.23 avg
  6. 22
    Sam Mason Mysteries series cover

    Sam Mason Mysteries

    by L.A. Dobbs

    16h 32m total 3 books 4.08 avg