Top positive review
The style is great for right-brained folks, and the brevity at least provides a book that beginners can tackle w/o choking
Reviewed in the United States on October 23, 2017
I was surprised that this short book attempted to cover some more advanced concepts. For visual learners, this style is extremely effective. There are a few typos here and there, but nothing too bad.
The website with the exercises has some significant problems, though I don't know how many of the exercises are affected. The one I tried rejected my answer, but the "correct" answer shown wasn't even for the same question! I'm mostly giving high marks for taking a different approach for those who think a bit differently.