This is a great post-apocalyptic novel from Dmitri Glukhovsky. I will confess I only read this after starting to play the game Metro 2033 (PC DVD)
which is based on this book. It is a fairly standard post-apocalyptic novel with similar themes, although it has reflections and themes based on what happened on the Second World War from a Soviet/Russian perspective. The book follows a fairly young inexperienced traveller trying to save his "home" metro station from unidentified attackers - and allows him to experience what has become of Russian society after a nuclear attack. It is interesting as we can see his naive reactions to what has happened to the inhabitants of Moscow, which reflects some of the previous factions and history in Russian society.
It has been interesting as I have never read a modern Russian author before, although I cannot tell if anything or not has been missed in the translation. One thing that may be unfamiliar in this book is the use of Moscow Metro station names - it is easy to get confused with the names and being unfamiliar with them I have no way to tell if there was some underlying meaning to the use of the station names.
Overall this is a good science fiction novel and well worth reading, especially if you enjoyed the game.