I have just finished reading this book. There is much, as a self proclaimed non-scientist, that I have failed to comprehend. Having said that, there is an almost equal amount that I have been able to understand and learn.
There is so much to learn about the industry/sector in which we work that, to attempt to single out even just a handful of areas would be a disservice to the rest of the areas that this book covers.
I can only suggest that those reading this post, if you have not already done so, that you should invest in this book and decide for yourself what resonates most with you, then go and apply and share your (new) knowledge with your family, friends and colleagues.