curtain

Description

It would seem you are looking for some sort of overview or brief on a “curtain book.” Is that perhaps a specific book or concept by which curtains are entailed? Perhaps, in literature, design, or even praxis, curtains might symbolize privacy, division, or even reveal transitions in storytelling.
If you were referring to a specific book or topic, I’d be happy to elaborate about “curtains” – just let me know!