Cognitive expertise has been examined by the naturalistic decision making (NDM) community over the past four decades. This group of international, applied psychologists and scholars provide alternative methodologies to access expert thinking in order to more effectively share and accelerate knowledge. The chapter examines the contributions of this community, providing pragmatic insights into how one can translate professional domain-based expertise to other professionals and novices. It is contended that capturing, eliciting, and documenting expertise in action utilising these methods, warrants epistemic recognition.