Winter Is Coming by Garry Kasparov

Gave me knowledge about modern Russia.

  Prisoners of Geography 

Because it explains how physical geography affects the economic success of countries.

  The Accidental Superpower by Peter Zeihan 

Because it has good opinion on geopolitics.

  Carl Sagan’s Contact

Great book on theoretically communicating with aliens)

  The Art of the Long View by Peter Schwartz

Because it have me advice on how to predict the future.

  China Coup by Roger Garside

Because it is an interesting opinion on future problems China may have.