*Physical Chemistry of Ionic Melts and Solid Electrolytes*, edited by Yuri Konstantinovich Delimarsky, is a unique compilation of scientific works dedicated to one of the most pressing and complex areas of physical chemistry. Prepared by the Scientific Council on the Physics of Ionic Melts and Solid Electrolytes of the USSR Academy of Sciences and the Ukrainian SSR Academy of Sciences, this volume offers valuable insights into the behavior of ionic systems across various states and conditions. The book explores key aspects of the physical chemistry of ionic melts, including their thermodynamic properties, electrical conductivity, and ion interactions within solid electrolytes. Drawing on data accumulated through years of research, the authors provide both theoretical analysis and practical guidance, making this work highly relevant for scientists and engineers working in materials science, electronics, and energy technology. Ideal for both specialists and students studying physical chemistry, materials science, and related fields, this book is perfect for those eager to deepen their understanding of ionic melt and solid electrolyte properties. It is especially useful for graduate students and early-career researchers involved in dissertations on physical chemistry and materials development. Covering a broad range of topics—from ion conduction mechanisms and thermodynamics to kinetic processes—this collection emphasizes experimental methods, making it a valuable resource for practitioners. Readers will find not only solid theoretical foundations but also practical recommendations for conducting experiments and interpreting results. The authors and editors maintain a rigorous scientific style characterized by clarity and precision, facilitating the comprehension of complex concepts. Yuri Konstantinovich Delimarsky, renowned for his contributions to physical chemistry, demonstrates his extensive expertise and deep understanding throughout the book. His scientific influence extends beyond this work, as he has authored and edited numerous other significant publications that continue to inspire new generations of researchers. *Physical Chemistry of Ionic Melts and Solid Electrolytes* will become an indispensable resource for anyone interested in the latest advances in physical chemistry. It opens the door to the fascinating world of ionic systems, offering readers an opportunity to explore a dynamic and intricate realm where physics and chemistry intersect, creating new horizons for scientific discovery and technological innovation. If you are seeking literature on physical chemistry, ionic melts, or solid electrolytes, this book deserves a prominent place on your bookshelf. It will serve not only as a textbook but also as a source of inspiration for future breakthroughs in science and engineering.