  We discuss the 3D real-space reconstruction of the optical galaxy density
field in the local Universe as derived from the galaxies of the Nearby Optical
Galaxy (NOG) sample.
  NOG is a distance-limited (cz_{LG} < 6000 km/s) and magnitude--limited (B<14
mag) sample of 7076 optical galaxies which covers 2/3 (8.29 sr) of the sky
(|b|>20). We have replaced ``true distances'' measurements for all the objects
in order to correct for redshif distortions.
  Using homogenized photometric information for the whole sample, NOG is meant
to be an approximation to a homogeneous all-sky 3D optically selected and
statistically well-controlled galaxy sample that probes in great detail volumes
of cosmological interest.
  Our goal is to construct a reliable, robust and unbiased field of density
contrasts covering interesting regions of galaxy and mass overdensities of the
local universe.
