This document provides an overview of key principles and philosophies related to Total Quality Management (TQM). It discusses contributions from quality gurus such as Deming, Juran, Crosby, Shewhart, and Feigenbaum. Some of the key principles covered include leadership, customer satisfaction, satisfying internal and external customers/suppliers, employee involvement, and continuous improvement. The document also discusses historical perspectives on quality management and differences between conventional quality management and TQM.