People who like equations and complex charts will be disappointed, it doesn't feel like hard sciences. You will need to dive in the references of this book to crunch maths.
The subject is extremely interesting and you don't need to be a physician, a mathematician or an engineer to understand what it is about. It is dense, precise, sometimes a bit funny with few but good references in fine art. I highly recommend this book as a first reading for people who want to arouse their interest in fluid mechanics and morphogenesis (generation of shapes). The format is friendly (small and thin, nice hard-cover) and chapters well ordered, really pleasant and informative.
There are 3 books in this serie, "branches" starts well, I'm just at the beginning of it, but I have a good feeling... !