The illustrations are a full page and a third of a two page spread. The first two thirds of the page on the left is where the text is placed throughout the book. I just enjoyed this layout and knowing where to find the text as I read each page. Big concepts about air are shared with the reader in mind. An air fact drives the page but the author carefully makes connections to help the reader process the information.
Here's an example; Air is close to the earth, above the pointed roof and between the trees.
Then on the same page; When we go to the top of a high mountain, there is less air so it is harder to breathe.
Students will think about the movement of air, warm and cool air, sound waves being carried, oxygen, the weight of air, and air being invisible. So many important ideas for early scientists.