We used this in our school to support students in Kindergarten that just weren't ready for a Book Log yet.
In the top, students read the 6 books in their book baggies once through.
On the bottom, each time students reread their books, they mark off that they've read them.
We laminated these and students checked off their books each day with dry erase markers. You could also use this in a paper version and see how much they've read across a week's time, or before they go book shopping for new books!