"Exploring the Laws of Ohm and Joule-Lenz in Differential Form" by B. C. Poznyaka is an in-depth and comprehensive study of the two fundamental laws of electricity that underlie many modern technologies and scientific disciplines. This work will be of interest not only to students and teachers studying physics and electrical engineering, but also to anyone who wants to deepen their knowledge in the field of electrical processes and their mathematical description. In the book, Poznyak offers readers a unique approach to understanding the laws of Ohm and Joule-Lentz, considering them not only in a traditional context, but also in a differential form. This makes it possible to describe electrical phenomena more accurately and visually, which is especially important in conditions where high accuracy of calculations is required. The author focuses on mathematical foundations, which makes the book useful for those who want not only to memorize the formulas, but also to understand how they work and why this is so. Who can like this book? First of all, it will be useful for students of technical universities studying electrical engineering, physics and related disciplines . It may also be of interest to graduate students and young scientists working in the field of electrical and electronic systems. In addition, the book will be useful to teachers who want to enrich their lectures and seminars with new approaches and examples. The topics raised in the book cover not only the laws of Ohm and Joule-Lentz, but also their application in various fields of science and technology. Poznyak discusses how these laws help in designing electrical circuits, analyzing their behavior, and optimizing the operation of electrical devices. The book also touches on modern technologies such as nanotechnology and renewable energy, showing how the classical laws of physics continue to be relevant in the face of rapid scientific progress. The author's style is distinguished by clarity and accessibility of presentation, which makes complex concepts more understandable to a wide audience. In. C. Poznyak is known for his work in physics and electrical engineering, and his experience allows him to share deep knowledge with readers. Among his other well-known works are works on the theory of electrical circuits and methods of their analysis, which are also popular among students and specialists. The book "Exploring the Laws of Ohm and Joule-Lenz in Differential Form" not only deepens understanding of the basics of electricity, but also inspires further study of this fascinating field of science. Readers interested in electrical engineering, physics, as well as the applied aspects of these sciences, will find in this book a lot of useful information and new ideas. If you are looking for literature that will help you better understand the laws of electricity and their application in the modern world, then this book will be an excellent choice. It will not only enrich your knowledge, but also open new horizons in the understanding of physics and electrical engineering. Do not miss the opportunity to immerse yourself in the world of electrical phenomena with B. C. It's late and its fascinating study!