A great book! It's very readable and more of an applied math book written with engineers and scientists in mind.
Starting out with the basics of state-space representations, it moves from 1D to 2D to 3D dynamics. The last section deals with the popular topics of chaos theory and fractals. But not from a simple pop-math perspective that you'll find in the math section of the book store. It's the real deal, except presented in a way that can be understood by non-mathematicians.
Strogatz is also coauthor of the paper that introduced small world networks. I really admire him for being so brilliant and at the same time capable of getting these topics across to everybody. I also recommend his book Sync.
Used this book during an undergraduate introductory course. I am now revisiting some of the chapters again, this is a great book! I think those interested in "data science" should definitely be exposed to some of the concepts introduced in it.