I think it’s kind of cool. I imagine that in the future, this sort of ‘diagram’ or visual representation of the major themes of a chapter, will be part and parcel of most digital texts that we download or read. Why not? They’re cheap to make, they give the reader a quick guide to the important action to watch for, and they act as a useful hand-holder for the reader.
Will my students find such things useful? It’s too soon to tell.
I dare say this wouldn’t be quite as effective for Book 2 ; )
Perhaps not, no.