  Hercules X-1/HZ Hercules (Her X-1/HZ Her) is an X-ray binary monitored by
multiple X-ray missions since last century. With the abundance of long-term
observations, we present a complete set of orbital light-curves of Her X-1/HZ
Her during the six states of the 35-day cycle in multiple energy bands. These
illustrate in detail the changing light-curve caused by the rotating
twisted-tilted accretion disc surrounding the neutron star. The orbital
light-curves during Main-High (MH) state are analyzed in 0.05 35-day phase
intervals. These show the regular occurrence of pre-eclipse dips which march to
earlier orbital phase as 35-day phase increase. From the multi-band
light-curves we derive time-average orbital phase dependence of column density
for photoelectric absorption and energy-independent transmission as a function
of 35-day phase. The X-ray light-curves during Low States are similar in shape
to the optical Low State light-curve, but X-ray leads optical by $\simeq$0.04
to 0.08 in orbital phase.
