"Microbiology in Your Pocket: Quick Pathogen Review" by Melphine Harriott is a comprehensive yet compact reference book that focuses on the most important bacteria, viruses, fungi, and parasites. This book is particularly useful for medical students and healthcare graduates preparing for exams like the USMLE®. The information is organized by organ systems, allowing for easy navigation and quick learning. Each card provides an introduction to the respective pathogen, supplemented by clinical case studies and images. The back includes detailed information on taxonomy, morphology, infections, pathogenesis, epidemiology, diagnostics, prevention, and treatment options. With over 230 graphics, including colored clinical images and diagrams, learning is visually supported and long-term retention is enhanced. The use of animations further deepens knowledge.