Geographic Information Systems or popularly known as GIS has been developing it's roots since the role of remote sensing has increased. It spreads it's branches to civil engineering, geosciences, forestry, disaster mitigation, ecology and environment and various other fields. The book explains the concepts of GIS in a simple language. Topics like development of GIS, data structures, database concepts, map projections, requirement of hardware and software for implementing GIS, errors and removing errors, advanced analysis are a few s to be named which find place in this book.