1. I would agree: I discovered it a few weeks ago and it changed my understanding of both how my mind works and the practice of meditation (after 5+ years of on/off practice, retreats and many many books). I found the explanations so clear that I'm going for a 6 weeks retreat to his center in a few days.

2. In the same vibe I was recommended Shinzen Young "the science of enlightenment"[1], which has very enthusiastic reviews from many masters, including Culadasa. I haven't read it yet.

[1] printed in 2016, https://www.amazon.com/gp/aw/d/1591794609/