This edited two-volume collection presents the most interesting and compelling articles pertaining to the formulation of research methods used to study information systems from the 30 year publication history of the Journal of Information Technology (JIT). The JIT articles in this volume capture the living debates surrounding the development of the IS field and the application of research methods therein. Using a time horizon of the last and the next 25 years, the papers examine whether there is a methodological crisis in the field, the role of diversity, the nature of inter-disciplinary discourse, the relevance and applicability of generalization, whether theory is king, or something else altogether, critical analyses and literature review techniques, and the craft of case study research.