Structured abstractThe purpose of this article is to critically examine, within the context of professional practice and learning, diverse theoretical approaches that are currently prominent in researching transitions and to propose future directions for research. Much research to date on professional transitions has focused on predicting them and then preparing individual practitioners to navigate transitions as sites of struggle. The article begins by describing work contexts integral with professional transitions: regulation, governance and accountability; new work structures; and knowledge development. The discussion then examines transitions research in developmental psychology, lifecourse sociology, and career studies. These perspectives are compared critically in terms of questions and approaches, contributions to understanding professional transitions, and limitations. The implications for educators are a series of critical questions about research and education directed to support transitions in professional learning and work. Future directions and questions for research in professional transitions are suggested in the final section, along with implications for supporting professional learning in these transitions. The article is not intended to be comprehensive, but to identify issues for the reader's consideration in thinking about various forms of transition being experienced by professions and professionals. The discussion theory-based, exploratory, and indicative rather than definitive.Professions arguably are experiencing a heightened state of transition these days as they respond to major changes in policies and policy ideals, regulatory regimes, restructured work arrangements, new technologies and shifting public demands (Evetts 2009). Individual practitioners within the collective professions, too, are called to manage difficult transitions throughout their careers beginning with the shift from initial professional education to the workplace. Professionals frequently must cope with transitions to new levels of responsibility, implementation of new protocols for practice, and migration to new work sites and cultures.Who is interested in understanding these professional transitions, and why? The answer varies depending on one's discipline and investments. In the field of psychology, for instance, concern has centred on the personal struggle, dissonance, and challenges to selfconcept that transitions are assumed to pose. Research in these areas informs counseling practices intended to help people develop personal coping strategies. In organization and management studies, transition has sparked an industry of 'change management' interested in improving planning strategies and managing workers' transitions (e.g. Bridges 2004). For policy-makers and regulatory agencies, concern often centres upon ensuring quality and reliability of professional decision-making throughout transition periods (e.g. Kilminster et al. 2010). Educators, on the other hand, tend to focus upon