  Since the discovery of graphene -a single layer of carbon atoms arranged in a
honeycomb lattice - it was clear that this truly is a unique material system
with an unprecedented combination of physical properties. Graphene is the
thinnest membrane present in nature -just one atom thick- it is the strongest
material, it is transparent and it is a very good conductor with room
temperature charge mobilities larger than the typical mobilities found in
silicon. The significance played by this new material system is even more
apparent when considering that graphene is the thinnest member of a larger
family: the few-layer graphene materials. Even though several physical
properties are shared between graphene and its few-layers, recent theoretical
and experimental advances demonstrate that each specific thickness of few-layer
graphene is a material with unique physical properties.
