This edition offers a concise and pleasant presentation of subjects including parasitology, entomology, and mycology. New topics such as Antimicrobial Stewardship, Clinical Case Discussions (in Question-Answer format), AETCOM, and Applied Microbiology (including Clinical Microbiology discussions) are added to enhance clinical relevance and applicability. The content is organized into twelve well-structured sections. This edition is enriched with color illustrations, photographs, flowcharts, and tables to facilitate better understanding. The Clinical Microbiology section, in particular, is designed to support budding doctors, interns, residents, and practicing physicians who often face challenges in the proper collection and transportation of clinical samples to laboratories.