Nice list of recommendations! You've convinced me to give a couple of the books a shot :)
To answer your question at the end - the non-technical book I enjoyed the most in the last year was Factfulness by Hans Rosling - goodreads.com/book/show/34890015-f...
It's a book about how we're wrong in thinking about the world, especially "third-world countries", and how the world is actually a much better place than we think. Hans Rosling's TED talk called "Best stats you've ever seen" is actually a good intro to the book. Hope you enjoy that - youtube.com/watch?v=usdJgEwMinM
Ha, my colleague holds this book for couple weeks already on his workplace and I was very interested to take a look into it
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