Last year a team of British experimentalists suceeded in the preparation of
{\it graphene}, a genuinely two dimensional variant of graphite. Closely
allied to the buckminsterfullerenes and carbon nanotubes, graphene displays
a wealth of unconventional transport properties, which have triggered an
outburst of recent theoretical activity. Inaccessible to the conventional
tools of many body physics, many of these phenomena require the application
of state of the art concepts of the theory of disordered electron systems.
In this talk I will give an introduction to the basic physics of graphene,
and introduce a theory describing its conduction properties at large length
scales. Specifically, I will discuss the intriguing experimental observation
of a fully universal conductance of ${\cal O}(e^2/h)$ in the system: Is
graphene a genuinely metallic system not suffering of Anderson localization?