It's marketed as a travel book but it's much more than that. It gives a very good insight into Kazakhstan past and present including the political/economic developments. The author spent days talking to and traveling around with President Nazarbayev. The president comes across as a very smart guy who has done really well given the appalling situation he inherited. The author obviously liked the country but the book doesn't come across as propaganda.
It contains the inside story on how the USSR really worked, what the gulag was like from people who survived it, how and why the new currency (the tenge) was secretly planned, how arab countries offered to pay them to keep their SS18 ICBMs, and how Iran and Iraq tried to buy weapons grade material.
This book is a serious bit of writing and impressed me a lot. If you want to know more about a country which is in the news because of oil then I recommend this book highly.