Principles of Electromagnetic Methods in Surface Geophysics contains information about the theory of electromagnetic fields in a conducting media. It describes the theoretical and physical principles of the main geophysical methods using electromagnetic fields, including frequency and transient soundings, electromagnetic profiling, magnetotelluric soundings, high-frequency methods (such as ground-penetrating radar), induction logging in vertical and horizontal boreholes (including measurements while drilling). Special attention is paid to models and signal processing methods used in modern ex.