▎ 摘　　要

We review the transport properties of graphene, considering both the case of bulk graphene and that of nanoribbons of this material at zero magnetic field. We discuss: Klein tunneling, transport by evanescent waves when the chemical potential crosses the Dirac point, the conductance of narrow graphene ribbons, the optical conductivity of pristine graphene, and the effect of disorder on the DC conductivity of graphene.