Further Development

I tried to build the shapes up so the history of Mr Polly book would create a sort of landscape. This works well with these shapes but i don't think they would work for my other covers. If i wanted to keep the design consistent, the design would have to work on all 3 covers. However im just thinking, does it really matter if the inside of each book is different as they are limited edition?? Theres something to make a decision on!