  Deviations from isotropy have been a key tool to identify the sources and the
primary type of cosmic rays (CRs) at low energies. We argue that anisotropies
due to blind regions induced by the Galactic magnetic field, the cosmological
Compton-Getting effect, medium-scale anisotropies reflecting the large-scale
distribution of CR sources and the small-scale clustering of the CR arrival
directions at the highest energies may play the same role for extragalactic
CRs.
