Microbiology studies living organisms like viruses, protozoa and bacteria. The subfields of microbiology include bacteriology, parasitology, immunology, mycology, protozoology, virology and nematology. Microbes are very beneficial as they are responsible for processes such as antibiotic production and industrial fermentation. They can also be used for biodegradation of industrial and domestic waste. This book is an essential guide for both academicians and those who wish to pursue this discipline further. Coherent flow of topics, student-friendly language and extensive use of examples make this book an invaluable source of knowledge.