This book concerns with the use of a combination of potential field methods and GIS technique for developmental purposes in Sohag governorate, Upper Egypt through the imaging of the surface and subsurface structural settings. Several advanced techniques such as filtering, 2D and 3D modeling, Euler deconvolution and edge detectors were applied. The integration of these techniques provided us with invaluable information about the subsurface structure, thickness of the sedimentary cover as well as the most promising locations of gas and petroleum in the investigated area. In addition, this book introduces information and new gravity and magnetic techniques for researchers working in the fields of geophysics, structural geology and petroleum exploration.