Volcanology is concerned with all aspects of volcanoes and volcanic eruptions. It encompasses the study of seismicity and seismic levels in volcanic areas. It also studies the application of geological principles and theories to predict volcanic activity or stratigraphic analyses to date eruptive patterns. Over the years, this sub-field of geological science has undergone rapid advancement. Modern volcanology utilizes various advanced tools of study such as satellite readings, seismic observations, and other geodetic techniques to understand and predict the behavior of volcanoes. This book covers a number of key concepts and theories central to this field to equip readers with detailed information about the diverse aspects of volcanology. Various advancements in this field are glanced at and their applications as well as ramifications are looked at in detail. Coherent flow of topics, student-friendly language and extensive use of examples make this book an invaluable source of knowledge.