Jeffrey Armstrong

The provided Wikipedia extract for Jeffrey Armstrong is predominantly focused on defining and categorizing the thriller fiction genre. It explains that thrillers encompass various subgenres like crime, horror, and detective fiction. The defining characteristic of this genre is its ability to evoke strong emotions in the reader, such as suspense, excitement, anticipation, surprise, and anxiety. The text also lists numerous sections and related topics within the broader study of thriller and related fictional genres, such as spy fiction and crime writing, alongside external links to relevant organizations. However, the extract does not provide specific details about Jeffrey Armstrong's personal life, his specific works, or any unique contributions he may have made beyond his association with this genre.