A book talk is like an advertisement for a book -- think like a movie trailer for a movie. In your book talk, you'll cover 3 main categories:
Short, spoiler free summary: Tell us the title, author, and a little bit about the plot (what happens in the book). Remember not to give too much away or tell us any spoilers -- the point is to help us decide if we want to read it!
What you liked about it -- characters, plot, action, genre, a twist you didn't see coming, description / detail, etc. What made you keep reading?
Recommend it: What kind of reader would like it? Why? As part of your recommendation, I encourage you to read a part (a paragraph - 1 pg.) of your book to help us see if we'd like it too.