Geographic information in decision making often goes unnoticed, but it is actually very present in our daily activities. Our eBook Fundamentals of GIS: Applications with ArcGIS shows the potential of Geographic Information Systems (GIS) for geoprocessing and mapping using ArcGIS. This book is designed in a didactic and sequential way, as we advance in the development of the exercises we will acquire and improve our skills in the use of GIS tools, until we get to the publication of a well edited map. When the exercises in this book are completed and developed, the user will be able to fully understand the fundamentals of GIS, and the use of its main tools to generate maps. This is a book that will teach you from scratch and step by step the use of GIS for your professional projects.