Over the past half century, the field of chaplaincy has come to a fork in the road. Many will recognize the well-traveled path of traditional chaplaincy. Others will follow the newer but clearly marked way to professional chaplaincy: a clinically trained, evidence-based discipline, reflecting and serving the diverse expressions of spirituality in modern society. Until now, chaplaincy in Emergency Medical Services has been the terra incognita, the unknown land on the chaplaincy map. Drawing on three decades of clinical chaplaincy practice, scholarship and original research, Russell Myers gives us the map, making the case for ambulance service chaplaincy-how to think about it and how to do it.