Microbiology as a science has expanded by leaps and bounds in the past few decades due to advancements in sophisticated instrumentation and recombinant DNA technology, which added a new dimension and revealed an understanding of the subject at the molecular level. Microorganisms are highly ubiquitous in nature and manifold in their activity. Interest in microbiology increased quite significantly due to the wide application of microorganisms in studying different biological processes. An attempt has been made to introduce the readers to several areas of microbiology and microbial...