This publication provides readers with an introduction to applied micro-biology and its fields. Focus lies on archaea, fungus and bacteria. The book attempts to create an understanding about various microorganisms, microbial genetics, and industrial fermentation. The focus here lies on Coley's toxins, exotoxins, lysogenic cycle, gut flora, viral envelope, entry, replication, shedding, latency, sporangium, conidium, nitrogen fixating, actinobacteria, microbial biodegradation and bioremediation. Attempts are made towards understanding immunology, oral microbiology, microbial ecology and sewage treatment. Focus lies on flagellate, protist, amoeboid, pseudopodia, pseudopodia, cilium, macronucleus, micronucleus, apicoplast, microneme and tissue engineering. This publication creates an understanding about clostridium, parasitology, actinomyces, naeslundii, actinomycosis, adult t-cell leukemia, animal virology, anthrax, antigenic drift and antimicrobials. Contents: Introduction to Applied Micro-Biology and Its Fields; Understanding Immunology and Oral Microbiology; Towards Understanding Animal Virology, Anthrax, Antigenic Drift and Antimicrobials; Focus on Archaea, Fungus and Bacteria: An Overview; Introduction to Biochemistry, Biosafety and Biotechnology; Microbial Biodegradation and Bioremediation; Understanding Microbial Ecology and Sewage Treatment; Towards Understanding Microorganisms, Microbial Genetics and Role of Iron in Microbiology; Towards Understanding Phototrophs, Germ Theory of Disease and Industrial Fermentation; Focus on Coley's Toxins, Exotoxins, Lysogenic Cycle and Gut Flora; Focus on Viral Envelope, Entry, Replication, Shedding and Latency; Focus on Sporangium, Conidium, Nitrogen Fixating, Acetic Acid and Actinobacteria; Focus on Flagellate, Protist, Amoeboid, Pseudopodia, Pseudopodia and Cilium; Focus on Macronucleus, Micronucleus, Apicoplast, Microneme and Tissue Engineering; Understanding Clostridium, Parasitology, Actinomyces, Naeslundii, Actinomycosis and Adult T-Cell Leukemia/Lymphoma.