The Adrian Conan Doyle Collections series by John Dickson Carr consists of 4 books, published between 1954 and 1964. The series begins with The Exploits of Sherlock Holmes (With: Adrian Conan Doyle).
The Department D-3 series by John Dickson Carr consists of 1 book, starting in 1940. The series begins with The Department of Queer Complaints.
The Dr. Gideon Fell series by John Dickson Carr consists of 24 books, published between 1932 and 1967. The series begins with Hag's Nook.
The Henri Bencolin series by John Dickson Carr consists of 5 books, published between 1930 and 1937. The series begins with It Walks by Night.
The Sir Henry Merrivale series by John Dickson Carr consists of 23 books, published between 1934 and 1991. The series begins with The Plague Court Murders.