Dwarf Galaxies: Their Low Metallicity Interstellar Medium
  This review describes where we are today in light of the dust and gas
properties and their relation to star formation, in low metallicity galaxies of
the local universe following recent surveys from sensitive infrared space
telescopes, mainly Spitzer and Herschel space observatories as well as
ground-based observations of the molecular gas reservoir. Models to interpret
the ISM properties are gaining sophistication in order to account for the wide
range of valuable observational diagnostics that we have today to trace the
different gas phases, the broad range of photometry we have, from mid-infrared
to submillimetre dust emission and the various galactic size scales that we can
sample today. This review summarizes the rich multi-phase observations we can
exploit today, and the multi-phase modeling approach to interpret the
observations.
