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The accurate and frequent availability of spatial data is the basic necessity that caters theneed of geographers who is interested in spatial analysis. The study of space, region, choros,pays, areal differentiation has been the core of the subject matter of geography that grant itan identity of a unique disciplines. The tradition sources of spatial data collection like surveyfail to provide updated data. Hence, the beginning of the era of data collection using Airborneand Space borne platform has revolutionized the collection of spatial data and acceleratedthe quality research in the field of geography. But, this data required certain understandingof the process and interpretation techniques to use this data efficiently. This book covers indetail the process and techniques related to Aerial Photography, Remote Sensing,Geographic Information System, Global Positioning System, Digital Image Processing andJourney of Indian Space Research Organization in detail. The sequential reading of this bookenables a person to understand and better utilization of these techniques in its researcharea. Beside, this book also cover the latest technologies like Unmanned Aerial Vehicles(Drone), Lidar, their uses and characteristics along with some successful case studies.