Research on expert skills is harder than studying particular cognitive processes -remembering, hearing, grieving, and so on -because its domain is less neatly bounded. Skill and expertise are multi-level, composite phenomena: multi-level in that they involve neural, cognitive, aff ective, motor, social, technological, and cultural processes and resources all at once, composite in that expert musicians or sportspeople are deploying many integrated psychological, bodily, and social capacities all at once, from perception and attention through emotion and memory to precise movement coordination and interactive communication.In a provocative paper for the new Journal of Expertise , Fernand Gobet laments that 'the current state of research into expertise is problematic as knowledge is currently fragmented and communication between disciplines is poor'. This is 'regrettable, as many contradictions between the disciplines have been ignored and many opportunities for cross-fertilization missed' (2018: 1, 5).We embrace Gobet's challenge: 'the way forward for the fi eld of expertise is to join forces and carry out multi-disciplinary research' (2018: 5). We highlight skill phenomena much discussed by expert practitioners, specialist applied researchers, and philosophers infl uenced by phenomenology and ethnography, which have received less attention in cognitive neuroscience and philosophy of mind. We focus on (a) the embodied experience of (b) real expert performers in (c) real domains of practice, as they deploy (d) richly embedded strategies in (e) full and challenging ecological settings.This should not be a surprising 'turn' in the fi eld: while there are many reasonable ways to study skill, one useful path is to fi nd, track, closely observe, and listen to experts. This is a natural route to striking case studies, new puzzles, suggestive angles on existing questions, mature empirical traditions, and rich bodies of theory. While here we take the arts and, primarily, sport as our core domains, this kind of naturalistic or natural philosophy of expertise also operates in other fi elds, from medical diagnosis and surgery to emergency response, from aviation to software engineering, from teaching to science. These fi elds have long been investigated empirically,