Disclaimer: I am writing a book on the same topic (nevertheless it will be quite different from the content perspective).

I don't want to comment much on the book because of ^ but there is something that I found a little bit off putting for me.

It is the obsession with American big tech (the biggest tech companies and well known startups). The book suggests that all such companies have it figured out, that all engineers working there are the most productive and best in the industry. I personally don't believe it and I am not sure why a productivity book should be so heavily based around it.

As an example take this question from the book "What's so special about individuals who create the most used applications in the world?" I really really just want to answer "Nothing".

Anyways there goes my little rant... Definitely congrats on publishing a book, it is a struggle!