""Unseen Bug World"" unveils the fascinating microscopic realm of insect behavior, where complex actions unfold in milliseconds and sophisticated survival strategies emerge from creatures smaller than a pinhead. Through a combination of high-speed photography and advanced microscopy, this comprehensive exploration reveals how insects demonstrate remarkable problem-solving abilities, maintain intricate social structures, and play crucial roles in ecosystem stability. The book progresses through three main sections, beginning with an examination of insect cognition and decision-making capabilities. Notable examples include leaf-cutter ants' precise calculations for efficient leaf harvesting and honeybees' sophisticated communication systems. The narrative then delves into the fascinating world of social insects, where colonies function as superorganisms through complex chemical signaling and genetic mechanisms. The final section broadens the scope to demonstrate how these tiny creatures influence global ecological processes through pollination, decomposition, and soil maintenance. What sets this work apart is its integration of traditional observational methods with cutting-edge technology, including thermal imaging and genetic sequencing. Drawing from fifty years of entomological research across multiple continents, the book presents its findings in an accessible yet scientifically rigorous manner. While maintaining technical accuracy, it connects entomology with broader fields like artificial intelligence and biomimetic engineering, making it valuable for both specialists and informed general readers interested in natural sciences.