This AIA CES course explores the essential insights for Architects on Concrete Masonry Units (CMUs) in modern architecture, focusing on their impact on health, safety, welfare, sustainability, and design quality. Through case studies, performance data, and technical strategies, Architects will examine how CMUs support resilient building practices, aesthetic design flexibility, structural efficiency, and environmental responsibility. The seminar presents a closer look on traditional and emerging technologies in masonry to help professionals make informed material and design decisions that protect public welfare and enhance building performance.