This book gives a very good overview of the kinds of things data scientists do and the tools they use. All the concepts are illustrated with hands on programing examples you can follow along with.
I think this book would be very good for two groups of people. First, someone working in a technical field who wants to know what data science is all about. This would give them a good idea of the skills they will need and the type of work they may do as a data scientist.
The second group that would benefit from this book are people engaged in some field of data science and who are looking for a broad overview of the field. Since many people came to data science from other fields and learned hands on they may have trouble seeing the forest for the trees.
This is not a pop science book. If you looking for an armchairs introduction to the wonderful world of data science, this is not the book for you. If you want to learn by doing and know a bit of math and have some familiarity with programing, then this is the book for you.