Round Table on Axions and Axion-like Particles
  In this contribution, based on the discussion at a round table of the XIII
Quark Confinement and the Hadron Spectrum - Confinement conference, we review
the main properties of the QCD axion and, more generally, of axion-like
particles and their relevance in astrophysics and cosmology. In the last
section we describe the experimental concepts to search for the QCD axion and
axion-like particles (ALPs).
