  We present "The HI Nearby Galaxy Survey (THINGS)", a high spectral (<=5.2
km/s) and spatial (~6") resolution survey of HI emission in 34 nearby galaxies
obtained using the NRAO Very Large Array (VLA). The overarching scientific goal
of THINGS is to investigate fundamental characteristics of the interstellar
medium (ISM) related to galaxy morphology, star formation and mass distribution
across the Hubble sequence. Unique characteristics of the THINGS database are
the homogeneous sensitivity as well as spatial and velocity resolution of the
HI data which is at the limit of what can be achieved with the VLA for a
significant number of galaxies. A sample of 34 objects at distances 2<D<15Mpc
(resulting in linear resolutions of ~100 to 500pc) are targeted in THINGS,
covering a wide range of star formation rates (10^-3 to 6 M_sun/yr), total HI
masses M_HI (0.01 to 14x10^9 M_sun), absolute luminosities M_B (-11.5 to -21.7
mag) and metallicities (7.5 to 9.2 in units of 12+log[O/H]). We describe the
setup of the VLA observations, the data reduction procedures and the creation
of the final THINGS data products. We present an atlas of the integrated HI
maps, the velocity fields, the second moment (velocity dispersion) maps and
individual channel maps of each THINGS galaxy. The THINGS data products are
made publicly available through a dedicated webpage. Accompanying THINGS papers
address issues such as the small-scale structure of the ISM, the (dark) matter
distribution in THINGS galaxies, and the processes leading to star formation.
