This is a fun little book to flip through and take your time reading. I feel like it would work much better as an app or an interactive e-book, but this is fine nonetheless. (Maybe in a future iteration?)
The author really loves this subject and you can feel his enthusiasm seeping through the pages.
The text fluctuates from reasonably understandable to a layperson, to I have no idea what is going on because quantum physics and what is even a gluon.
It would've been nice if the book included a glossary, because there were a handful of times where I felt like the author jumped right into a technical term, assuming the reader would be familiar with it. Other times he did do his best to define a term, but the frequency of these clarifications just wasn't consistent throughout the book.
The illustrations give you a lot to think about, because a lot of them are either not visible with our current technology, or they are quite empty for a long time, further underlining just how much empty space there is in the universe.
I had two qualms with the illustrations. First, the elephant (and a couple of others that I honestly can't remember so it probably doesn't matter) were a little too fuzzy around the edges and sometimes I wondered if this was a printing error or not. This wasn't a problem with the pictures of the huge galaxies and the minuscule Planck scale, because it's not like we can naturally currently see those in perfectly crisp photographs, but we do all know what an elephant looks like so... why aren't the edges sharp? And secondly, every person in this book is white, and most are middle-aged males. I would've hoped to see more diversity in a book about the universe.
The book ends with notes from the author, running us through his train of thought for every chapter, as well as including references and resources if one would like to further research the subjects he touches on. I LOVED this section because while reading the book, I kept wondering about his decision-making process. It's not like the author had a magical zoom in his pocket to go back and forth at will and find the best angles to show the illustrator. He designed a gradual progression about an impossibly dense subject yet made it look easy enough to digest, and not impossibly complicated, and kept it interesting despite the wide empty spaces.
I really feel like the scope of all that decision-making would be way easier to appreciate in an app or interactive e-book.