Book appearance is not solely the purview of the publisher. It is the author's responsibility to dictate how the book looks. The creator knows the characters of the book and knows what the medium of emotional delivery should look like. There is no such thing as plot. Navigators and spies 'plot,' writers don't.
Plot is cutesy jargon.
Forget about it. It was coined by and for people who only talk about writing. You can't answer their question and they can't answer yours because plot is jargon. All communication has a point or it is noise. A book is a communication and has a point.