For those of you who never been to London or have been to London but forgot about about the map of London's underground. I would like to recommended to go to their website and print this out. If you are in London, you must have this map unless you are an expert and already know all the stops or the lines name. If not then you will loss your way just like I did when I first traveled to London. This map is very important and you must know how to read it. It should be fairly easy but could be hard especially when there is re engineering work.