Colour Exhibition: Test Format

I think I've found a solution to the format if the guidebook...

I'm now looking at having a square inner booklet which is the width of the A4 cover when folded over into A5. This will allow me to have four pages in the concertina booklet and so eight pages when counting the double sides. Initially I'm thinking I could keep the white concertina booklet just black and white leaving the different coloured stocks to make a bigger impact.

148 x 148 mm Square, white, concertina booklet with A4 Transclear cover.