This document discusses several quality gurus and their contributions to quality management. It summarizes the philosophies and beliefs of Armand Feigenbaum, Joseph Juran, W. Edwards Deming, Kaoru Ishikawa, Masaaki Imai, Philip Crosby, Shigeo Shingo, Walter Shewhart, and Eugene Grant. Key concepts discussed include total quality management, continuous improvement, statistical process control, the Deming cycle, Poka-Yoke, Just-in-Time, and the four absolutes of quality. The quality gurus emphasized customer focus, prevention over inspection, data-driven process management, and organizational commitment to quality.