All stars are born in groups. The origin of these groups has long been a key question in
astronomy one that interests researchers in star formation the interstellar medium and
cosmology. This volume summarizes current progress in the field and includes contributions
from both theorists and observers. Star clusters appear with a wide range of properties and
are born in a variety of physical conditions. Yet the key question remains: How do diffuse
clouds of gas condense into the collections of luminous objects we call stars?This book will
benefit graduate students newcomers to the field and also experienced scientists seeking a
convenient reference.