I give my students (when I taught older students) a copy of the Book Report page to stay in their binder. They always know when a Book Report is due and they know my expectations of which type of book or report I expected. I have them do setting, character, and sequencing reports after we learn about them.
Feel free to change it up as much as you'd like! I just like how I had it ready and equiped with what I wanted and expected. Plus this way the students had ideas for different Book Reports according to what they liked.
I gave the expectation that they had to change up from which category they did their report from. ENJOY! Hope you like it!