The study of microorganisms, their interaction with each other, their environment and their hosts is known as microbiology. Research in this field deals with unicellular, multicellular and acellular organisms, such as bacteria, fungi, protozoa and viruses. It further branches out into sub-fields like parasitology, virology, etc. Microbiology, as a field, contributes to the advancements in the fields of biochemistry, genetic engineering and medical microbiology. It also plays a significant role in the food industry. This book is a compilation of chapters that discuss the most vital concepts and emerging trends in the field of microbiology. Coherent flow of topics, student-friendly language and extensive use of examples make this book an invaluable source of knowledge.