  Recent results on physics in the charm energy region are reviewed. (1) The
new data and puzzles in exclusive hadronic decays of $J/\psi$ and $\psi'$ give
new challenges to the theory of hadronic decays. (2) With the new observation
for $\xi(2230)$ and $f_0(1500)$ in $J/\psi$ radiative decays and other
experiments, the situation in searching for glueballs is encouraging, but
theoretical uncertainties related to the properties of glueballs still remain
and need to be further reduced. (3) For the prompt production of charmonium at
large transverse momentum, gluon and quark fragmentations dominate over
leading-order parton fusions. Color-singlet fragmentation is not the dominant
mechanism for $J/\psi$ and $\psi'$ production. Color-octet fragmentation seems
to be important to explain the $J/\psi$ and, in particular, the $\psi'$ excess,
but further tests are required. The mechanism of charmonium production at
fixed-target also needs studying. (4) Some theoretical and experimental results
in charmonium and open charm hadrons are also reported.
