No, at first glance, I don’t think so. Then again, I don’t know the physical dimensions of the book.
When presenting new information to students in which one concept builds upon another, it’s good to break things up into chunks with a liberal use of white space.
The chunks give people the impression they’re learning things a step at a time and not drinking from a firehouse of non-stop information. The white space gives everything a more relaxed, friendly, open and uncluttered feeling, which, once again, keeps information overload anxiety to a minimum. This helps improve both understanding and retention.
I like what you’ve done. It’s clean, straight-forward and attractive. I especially like how you’ve contrasted the text on the left-hand pages with the infographics and examples on the opposite side of the spread. It’s especially nice given that students studying a book like yours might lean toward visual learners who benefit from seeing visual reinforcements of what they’ve read.
If it were me, I’d be inclined to scrap the justified column of type and use ragged right with no hyphenation, but that’s just me. And speaking of hyphens, I noticed two or three places in the copy where you used them in places where an em dash should be used instead.