  We present a short pedagogical introduction to the physics of Dirac
materials, restricted to graphene and two- dimensional topological insulators.
We start with a brief reminder of the Dirac and Weyl equations in the particle
physics context. Turning to condensed matter systems, semimetallic graphene and
various Dirac insulators are introduced, including the Haldane and the
Kane-Mele topological insulators. We also discuss briefly experimental
realizations in materials with strong spin-orbit coupling.
