what is the size for book?

It looks like the cover will be 13.1 (width) x 9.25 in (height) with a spine of .85 in. Having said that, there are a few technical details to it. I will update the original post with a picture that contains these said technicalities.

I will submit your book cover design after 1 day.I have studied the project.It is really very interesting for me.

I will submit your book cover design after 1 day.I have studied the project.It is really very interesting for me.

any update?

Please take a look. Apologize for late.