I am a photography novice, and am trying to understand how polarizing filters and light reflections work.
I'm trying to understand how to reduce reflections in a glass corner. The context is trying to photograph a book in a type of display case, where the book is open at an acute angle, and each page is covered by a pane of glass to flatten it. This diagram (from this site) demonstrates approximately how the glass platen looks (but shows a larger angle; also, I'm photographing the book with just one camera instead of two):
The problem is that each page shows a reflection from the other page. (Similarly, if just one page is covered by a pane of glass, that pane will show a reflection of the opposite page.) The reflection doesn't seem to improve with increased light.
I understand from questions such as this and this that circular polarizing filters can reduce a camera's view of light reflected on glass. Would a circular polarizing filter be appropriate to use in this type of context (where there are two reflective glass panes facing each other at an angle) for reducing reflections? If so, I'd be grateful to understand why. Are there alternative approaches that you would recommend that I learn about for reducing reflections in this context?
(For the purpose of my learning, imagine that the camera can be placed anywhere with a clear view of both pages of the book, whether straight down or at an angle. Similarly with light sources.)