You wrote a notebook, not a book. Also your example pages have oversized images and still you only have 130 pages of content, yet you are charging an extreme amount for it.
just to clarify, I don't think "oversized image" was a mistake on author's part, but a deliberate attempt to inflate book size, hence the rest of my sentence
Many authors are using notebooks as a way to edit and publish books. The tooling is getting better.
>Also your example pages have oversized images
Yes, humans sometimes make mistakes when they create things.
>and still you only have 130 pages of content, yet you are charging an extreme amount for it.
I believe the author is free to have as many or few pages as they want, and charge as much or less as they want. You are obviously free to choose.