The first pair of pages is at the very beginning of the book. The picture on the left shows a drawing of a woman looking out of the window into the light like it is the enlightenment. On the other site there are various details about the book including the title. Also there is a contrast between the typical black font and an other color red.
The second choice is also at the beginning. It shows the beginning of a chapter and is very decorated with a little pattern on the top and a big first letter of the first sentence. It has a big difference between very big letters and the small text underneath it.
The third choice is a page with three figures. They show some technical drawings showing different perspectives of the human view.