Mystery Writers of America, Inc., is the premier organization for mystery writers and other professionals in the mystery field. MWA watches developments in legislation and tax law, sponsors symposia and mystery conferences, presents the Edgar Awards, and provides information for mystery writers. Membership in MWA is open to published authors, editors, screenwriters, and other professionals in ...

The Southern California Chapter of Mystery Writers of America covers members in California and Nevada below the 36th parallel, as well as all of Arizona and Hawaii.