The Next 100 Years- by George Friedman
If you like Sci Fi, this is almost a good book for you. Friedman strengths lie in his insights into past trends. He is able to digest complex history and give a summary of why things happened giving us today's current state. Beyond this strength, he has a very good imagination and he uses his knowledge of how things turn out based on a lot of imagination.
But as we can see, unexpected disasters, stir ups, can throw a wrench in the best made prophesies.
I only recommend the first few chapters in this book, so get it from the library and enjoy.