Ivo - We had several artists that didn't want to show every page of their book, so we created a setting to have the artist choose how many thumbnail images they want to display on their book page(s). You can choose as little or as many as you like, there is no limit, just a default value, which you can change.
It is a pity that AW, from now on, limits the image of the inside pages to 28, what use are the following pages if no one can see them? There is probably a good reason for this, but why not make a slideshow of the entire content?