You may have noticed, but Mystery is not the forte of your librarians. So we’re turning to the experts for help here!
Mystery-writer Mindy Starns Clark offers this exhaustive list of the Mystery subgenres, as well as a helpful distinction between Mystery, Suspense and Thriller. Once you know what kind of mystery you are writing, do a search on the conventions of your particular subgenre (but know that convention breaking is your prerogative!)
Joan Lowery Nixon, author of over 100 books, offers these tips on Mystery writing. Explore the site for more info!
P.D. James, acclaimed writer of adult mysteries, offers these tips.