Telepathy is the ability to communicate mind to mind.  Telepathy is the most common Talent, though some people could only receive thoughts, and others only send. The rarest of the Talents are the pure and double telepaths, who can send and receive communications across the world.  They could also penetrate any mind not shielded, artificially or naturally.  Because of being sensitive to others thoughts around them a telepath will usually raise their own mental shields or many have shielded rooms where they can relax without the constant intrusion of others thoughts.