This book is great for combining all of the domains of math that form machine learning. If you are a beginner and haven't had much college math training, I recommend reading the sections and supplementing with external resources such as Khan Academy and YouTube because the writing in this book is very formal. In my experience with this book, if I go to KA and work out whatever I am having trouble with and then return to this book, then I will understand the material and how it fits into the big picture.