We see teaching mathematics as a form of story-telling, both when we present in a classroom and when we write materials for exploration and learning. The goal is to explain to you in a captivating manner, at the right pace, and in as clear a way as possible, how mathematics works and what it can do for you. We find mathematics to be intriguing and immensely beautiful. We want you to feel that way, too.
This is not a classroom textbook geared towards learning. It is a dry, prolix reference. I love math...if you're not someone who WANTS to know math, this may do more harm than good for you. It doesn't convey what the math is accomplishing or the point of the math.
IMHO there's just no place for an average textbook these days; a textbook has to offer a brilliantly organized compilation of material just as exciting and engaging as what's available free on YouTube and math-oriented websites.