Part 1 Introduction: auditory warnings and displays - an overview, Neville Stanton and Judy Edworthy. Part 2 Acoustics and auditory processes: localizable alarms, Deborah J. Withington; audibility of reverse alarms under hearing protectors and its prediction for normal and hearing-impaired listeners, Gary S. Robinson and John G. Casali; extending the domain of auditory warning sounds - creative use of high-frequencies and temporal asymmetry, R.D. Patterson and A.J. Datta. Part 3 Auditory cognition: the interpretation of natural sound in the cockpit, James A. Ballas; auditory warning affordances, Neville Stanton and Judy Edworthy; the perceived urgency and detection time of multitone auditory signals, Ellen C. Haas and Judy Edworthy; a psychophysiological evaluation of the perceived urgency of auditory warning signals, Jennifer L. Burt et al. Part 4 Alarms in the broader context: investigations of alarm mistrust under conditions of varying alarm and ongoing task criticality, James P. Bliss; using redundancy in the design of time critical warnings - a theory-driven approach, Stephen J. Selcon; different effects of auditory feedback in man-machine interfaces, Matthias Rauterberg; speech-based alarm displays, N.A. Stanton and C. Baber. Part 5 Practical issues: designing aircraft warning systems - a case study, J.M. Noyes et al; the design and validation of attensons for a high workload environment, Elizabeth Hellier and Judy Edworthy; observational studies of auditory warnings on the intensive care unit, Christina Meredith et al; auditory alarms in intensive care, John Welch. Part 6 Conclusions: key topics in auditory warnings, Neville Stanton and Judy Edworthy.