Update 2/29/2020: I thank Reza Borhani who responded to my original review pointing out formatting problems with equations and graphs in the Kindle edition. The digital version of the eBook was subsequently replaced with a much more usable version (essentially PDF-like) and I revised my review as a result. I do still hope the publisher eventually releases a true Kindle edition as these provide more flexibility in sizing fonts and light & dark mode support. This minor point aside, my original review still stands: This is one of the best ML books available and is well worth the investment.
This is one of the best books on ML today; the 1-star rating is only for the poor formatting of the Kindle edition, not the book's contents. The Kindle edition's equations and graphs are small to the point of illegibility. I have both the print and Kindle editions. I use the Kindle (iPad & PC) edition when I commute or travel. The iPad Kindle edition graphs are usable, but many equations are too small to see. The PC Kindle edition has very poor sizing of both equations and graphs - to the point that you need a screen magnifier to see any details. I purposely gave this book a 1-star rating in the hope that they'd update the Kindle editions to make the equations and graphs usable. I will revise the rating to 5-stars if they do. Until then, you may want to stick with the print edition only. The content imparts an intuitive, but deep understanding of the subject and is well worth it.