Diagnostic Expertise in Organizational Environments is designed to provide a state-of-the art foundation for a new paradigm in expertise research. The focus on diagnostic expertise highlights its important role in precipitating effective and efficient performance in the context of a range of operational contexts, including aviation, rail, forensic investigation, firefighting and medicine. The book is deliberately oriented towards the application of the principles within professions, and it reflects the combination of underlying theory and practice on which the manuscript is founded.