This extraordinary issue tends to both self-potential and seism electrical changes. The topics incorporate field perceptions, displaying at little and huge scope trial advancements, and hypothetical investigation. From thirteen entries, eleven papers were chosen for distribution in the extraordinary issue. Two commentators evaluated each paper, and the original copies were then updated fittingly. We additionally incorporate an instructional exercise which presents the essential standards of the coupling among liquid and electrical stream under both consistent and flimsy conditions as created by Pride (1994), and an audit of different applications, for example, geothermal supply portrayal, just as a clarification about the electric twofold layer, whose suppositions are examined in the paper of M. D. Jackson and E. Leinov. Field perceptions of self-potential brought about by stream in broke stores are depicted by Y. Nishi and T. Ishido; watched SP on mountain slants is analyzed by T. N. Goto et al.; the self-potential initiated by flat liquid stream is demonstrated by G. A. Skianis