I bought this ebook after watching this video.
It is quite dense and practical. The author cuts most of the technical terms and make it easy to understand. It is a about psychology and the split between Human/Rational brain and Chimp/Emotional brain. It reminds me again to this book. Although he adds the concept of the computer too inside our brain. The Chimp is the strongest so you need to learn to tame it and live with it, you can force the chimp as he always beat the rational side. The computer is the fastest answering and it is used by the chimp so you need to have a good programming on it: your live values.
So the whole book runs around those three concepts so you can build a balance between them and live a stable life.
I liked it as I felt resonated with several concepts. I think they match a lot with Stoicism in the sense to accept the world, create your values and take action.