In this volume the full range of astrophysical maser

research is covered, with contributions from many of the

foremost researchers in the field. The topics include

masers in star-forming, circumstellar and extragalactic

environments, solar system masers, newly discovered masing

transitions, variability, proper-motion studies, and theory.

Since this was the first ever conference devoted exclusively

to astrophysical masers, these proceedings provide a

reference for this field which has not previously been

available. "Astrophysical Masers" will be useful both to

those who wish to study the physics of masers, and to those

who wish to better understand the astrophysically important

regions with which they are associated.