  Observations of cosmic rays have been improved at all energies, both in terms
of higher statistics and reduced systematics. As a result, the all particle
cosmic ray energy spectrum starts to exhibit more structures than could be seen
previously. Most importantly, a second knee in the cosmic ray spectrum --
dominated by heavy primaries -- is reported just below 10^{17} eV. The light
component, on the other hand, exhibits an ankle like feature above 10^{17} eV
and starts to dominate the flux at the ankle. The key question at the highest
energies is about the origin of the flux suppression observed at energies above
5 x 10^{19} eV. Is this the long awaited GZK-effect or the exhaustion of
sources? The key to answering this question is again given by the still largely
unknown mass composition at the highest energies. Data from different
observatories don't quite agree and common efforts have been started to settle
that question. The high level of isotropy observed even at the highest energies
starts to challenge a proton dominated composition if extragalactic (EG)
magnetic fields are on the order of a few nG or more. We shall discuss the
experimental and theoretical progress in the field and the prospects for the
next decade.
