'Camina (Con-Cos) Groups' is a comprehensive study of Camina groups. Presupposing the basic knowledge of group theory, this monograph introduces the reader to the principal accomplishments and most recent developments in this area. New concepts like infinite Camina group, Or-Con group and Or-Cos group open up new areas of investigation for the researchers who are working in this field. Numerous examples are given which supplement the material in text.