The world has changed so much since this book was published, it almost seems like ancient history. But as a snapshot as to what the cold war felt like in the early eighties, you could do much worse than than seeking out a copy of this book.
The author starts at the top of the iron curtain and works his way south, most of the time spent in Germany peeking over the top of the curtain. Some time is spent in the east in Berlin, comparing the huge differences between the democracy of West Germany and the confining strictures of the east.

The writing is very entertaining, again, that world has for the most part disappered, but is an important reminder of how we lived and the fears we had for three decades or more.

BTW, Ronald Regan did not tear down that wall, for an excellent overview of what actually happened I refer you to Michael Meyrs The Year That Changed The World.