  We discuss charm production at LHC. The production of single $c \bar c$ pairs
is calculated in the $k_t$-factorization approach. We use several unintegrated
gluon distributions from the literature. Differential distributions for several
charmed mesons are presented and compared to recent results of the ALICE and
LHCb collaborations. Some missing strength can be observed. Furthermore we
discuss production of two $c \bar c$ pairs within a simple formalism of
double-parton scattering (DPS). Surprisingly large cross sections, comparable
to single-parton scattering (SPS) contribution to $c \bar c$ production, are
predicted for LHC energies.
