In this introductory volume to the Brill Research Perspectives series on Quaker Studies, Quaker Studies, An Overview: The Current State of the Field, C. Wess Daniels, Robynne Rogers Healey, and Jon Kershner investigate Quaker Studies, divided into the three fields of history, theology and philosophy, and sociology. With a focus on schisms, transatlantic networks, colonialism, abolition, gender and equality, and pacifism from Quaker origins onward, Healey explores the rich diversity and complexity of research and interpretation that has emerged in Quaker history. Kershner explores comparisons and divergences in contemporary Quaker theology and philosophy. Special attention is paid to Quaker biblical hermeneutics, mysticism, ethics, epistemology and Global Quakerism. Daniels looks at the sociology of Quakerism as a new field of study that has only recently begun to be explored and developed. He surveys the field of sociological work done within Quakerism from the 1960s to the present day.