Physical book design layout

I started working on my page layouts and how I want 

my book to look; what kind of paper, how many pages 

will I be working with, etc. 

I found this design in a book and felt it would be 

really interesting to have my conversation going 

one way and suddenly flip to the other side, 

or upside down?....

Although this book is quite appealing, I 

starting thinking about a poster type 

book (I still like the flip book idea!).

It will open up like this, you read along from left 

to right of course, but at the end of the book you 

flip it over and the conversation continues on that 

side, upside down maybe?.... 

Then folds out like this...

When it is opened up the inside will have the entire 

conversation laid out in poster style. The conversation 

will appear a bit different than in the book.