Aquatic microbes, including bacteria, viruses, archaea, algae, fungi, and protists, form the foundation of aquatic ecosystems and play vital roles in maintaining the health and functioning of our planet's water bodies. The study of these organisms is essential for understanding the intricate workings of aquatic ecosystems and their implications for human and environmental well-being. "AQUATIC MICROBES: A JOURNEY INTO THE UNSEEN WORLD" provides a comprehensive overview of the fascinating world of aquatic microbes, their diversity, ecology, and importance in biogeochemical cycles.