This text draws on systems theory and applied psychology and stresses the importance of human agency within systems. It presents a new Qualitative Systems Approach to safety management that offers both greater safety and economic savings. It presents a series of methodological tools that have proven to be reliable through extensive use in the rail and nuclear industries. These methods allow organizational and systems failures to be analyzed much more effectively in terms of quantity, precision, and usefulness. Safety Management is valuable for reliability engineers, human factors specialists, and managers and professionals in many safety-critical organizations.