Henry B. Geiter, Jr., RN, CCRN was an experienced critical care nurse and educator recognized for his expertise in cardiac monitoring and ECG interpretation. With certification in critical care nursing (CCRN), he dedicated much of his career to teaching nurses and healthcare professionals how to accurately recognize and interpret cardiac rhythms. He is best known as the author of E-Z ECG Rhythm Interpretation, a practical and widely used resource valued for its clear explanations, step-by-step approach, and learner-friendly style. Geiter’s work has helped countless students and clinicians build confidence in ECG analysis and improve patient care in acute and critical settings.