Unconventional cover and binding

I found this book the other day with an unconventional cover.

 It takes you a moment, but eventually you notice that you can lift the paper up directly under the title. And then you keep unfolding, and eventually you unwrap the book entirely and discover this: a poster dust jacket made of luxuriously thick paper.

This is a lovely book, but one thing I noticed about the binding was the distance between stitches. I've circled them in the photo below and you can see that the bottom stitch is significantly farther from the edge of the paper than the top stitch.

What this means is that when you turn the pages, if you're at the beginning of a new signature of pages the bottom right corner catches as you turn. Like so:

An interesting design feature of this book is the location of the barcode. This would usually be located on the outside of the back cover, but in this book it is located inside the back cover, presumably to avoid taking up space on the dust jacket poster.

And yet another interesting design choice is the mixture of paper stocks used in the book. You can see the marked colour variation between the two different paper stocks in the photo below.