The Making of the Atomic Bomb by Richard Rhodes
A fascinating and intimate history about the people who developed particle physics and how it led to the atomic age. It really highlights what the scientific mindset is like.
Fiction :
Expeditionary Force series of books by Craig Alanson
I'm 12 books into this relatively new series and it is still going strong. If you like sci-fi and geopolitical dramas, this is the series for you.