Sorry not been able to add the photo's from my last post till now.
This is the first page.
With an envelope glued to the left hand side.
The first page is folded and on the left.
Glue another page onto the envelope.
The envelope is open at the top.
This is all the pages with envelopes glue between and on both ends.
All the spines are in the middle.
My card stock is cut at about 1cm taller than my pages.
It's double the width and an extra 1cm for a spine.
You just glue the envelopes to the cover.