Happy to see that at least the intro is being read by soneone ;) Yes, ISLR is a great book, but it's intended for a different audience. When we started teaching

Happy to see that at least the intro is being read by soneone ;) Yes, ISLR is a great book, but it's intended for a different audience. When we started teaching ML, we did use ISLR but we weren't happy with it because it was too light on the math side. When introducing ML to people who already has taken some math courses, it felt pity not to leverage their calculus and linear algebra knowledge - ISLR hardly mention vectors and derivatives... (and, to be honest... who wants to use R? But that wasn't any major reason) So we put together our own material for that course. And it felt worth the extra effort to turn it into a textbook available to anyone on the internet, and not just a pdf looked up somewhere in a university "learning platform" accessible only for a bunch of selected students. Maybe that wasn't the right priority, I don't know, but that's what we did. /Andreas, the first author