I'd recommend Elements of Statistical Learning or ISLR instead, if you want to start with a theory-heavy introduction. Most of what you need for DS you'd I think better learn through projects or on-the-job.
Also, as others have mentioned, some of the most important skills for DS are data munging, data "presentation", and soft skills like managing expectations / relationships / etc.
I would not recommend this book if you want to get into DS with the idea that, "I'll read this and then I'll know everything I need to." It's too dense and academically-focused, and it would probably be discouraging if you try to read this all without getting your feet wet.
Also, as others have mentioned, some of the most important skills for DS are data munging, data "presentation", and soft skills like managing expectations / relationships / etc.
I would not recommend this book if you want to get into DS with the idea that, "I'll read this and then I'll know everything I need to." It's too dense and academically-focused, and it would probably be discouraging if you try to read this all without getting your feet wet.