Geographic information systems are designed for the purpose of mapping any physical location on earth. They are designed to store, capture, analyze and present different forms of spatial data. It is applicable to various areas such as climatology, landscape architecture, natural resources, crime mapping, real estate, archaeology, public health and many others. The ever growing need for advanced technology is the reason that has fueled the research in this field in recent times. The objective of this book is to give a general view of the different areas of geographic information system and its applications. For all readers who are interested in this area, the case studies included in this book will serve as an excellent guide to develop a comprehensive understanding.