In an era dominated by imaging, biomarkers, and automated diagnostics, the ability to recognize and correctly interpret physical signs remains one of the most critical and defensible skills in neurology and clinical medicine, yet it is increasingly underemphasized in modern training and practice. This second volume (H–Q) of the Dictionary of Eponymous Physical Signs and Markers responds to that growing gap by presenting more than 400 carefully curated diagnostic entries, including classic and clinically decisive signs such as Hoover’s, Kernig’s, Lhermitte’s, Moro’s, Oppenheim’s, Parkinson’s, and Queckenstedt’s, each integrated with historical context, practical clinical application, and medico-legal relevance. Rather than functioning as a simple glossary, this volume serves as a working reference for real-world diagnosis, expert testimony, academic teaching, and regulatory documentation, recognizing that physical signs often determine early detection, guide treatment decisions, and shape legal accountability. Designed for neurologists, physicians, surgeons, forensic experts, postgraduate students, researchers, and institutional libraries, it bridges neurology, medicine, and surgery through cross-specialty coverage and structured entries that move from discovery to clinical impact and professional responsibility. By combining diagnostic precision with historical insight and forensic value in a 482-page, large-format reference, this atlas preserves the central role of bedside examination in an age of technological dependence, ensuring that clinicians remain equipped to recognize disease accurately, defend their judgments, and translate observation into reliable, evidence-based decisions in both hospitals and courtrooms.