  We review some recent developments in Higgs physics at a $\gamma\gamma$
collider. We begin with single Higgs boson production in $\gamma\gamma$
collisions proceeding via the hadronic content of the photon. For SM Higgs
masses of current theoretical interest, the resolved photon contributions are
non-negligible in precision cross section measurements. We found that
production of the heavier Higgs bosons, $H^0$ and $A^0$, of the MSSM can probe
regions of the SUSY parameter space that will complement other measurements. We
showed that associated $t H^\pm$ production in $\gamma\gamma$ collisions can be
used to make an accurate determination of $\tan\beta$ for low and high
$\tan\beta$ by precision measurements of the $\gamma\gamma \to H^\pm t +X $
cross section. We then reviewed recent progress on Higgs physics in direct
photon processes in which the Higgs bosons are produced via virtual loops.
Precision measurements of the magnitude and phase of the $H\gamma\gamma$
coupling at a photon collider can be used to determine Higgs parameters related
to physics beyond the SM.
