In conclusion, Jan Szargut's "Termodynamika techniczna" is a masterpiece of technical education. Its enduring value lies not only in its clear and profound exposition of thermodynamics but also in the legacy of its author—a man who was both a world-leading scientist and a master educator. While finding a free, unrestricted PDF or EPUB version of this copyright-protected work is difficult, its official digital presence within academic libraries underscores its continued importance in the 21st century. For students of energy and engineering, the quest to understand thermodynamics is, in many ways, a journey through the pages of Szargut's timeless work.