Here is a Cultural Literacy worksheet on the thriller as a literary genre. This is a half-page worksheet with a reading of two sentences and two comprehensions questions. In other words, a basic, but solid, introduction to this literary genre.
If you find typos in this document, I would appreciate a notification. And, as always, if you find this material useful in your practice, I would be grateful to hear what you think of it. I seek your peer review.