This is a great way to get your class excited about books. When I do this in my class each child has a specific day of the month so we have one kid talk each day. I also take a picture of each kid with their book and put it up on a bulletin board next to their note card, so that kids can check out which books their friends are into. When I take down the pics each month I put them in a little file box so that kids can look up past book talk books and check those books out of the library. This resource also includes a performance and content rubric that I grade them on each month.