Advances in artificial intelligence (AI) and data analytics are having a transformative effect on how work is performed. Research suggests that such technologies will wholly displace some professions while fundamentally changing where professionals expend time and effort in their day-to-day roles. The legal and accounting professions in particular are being transformed by AI and data analytics. This chapter discusses the nature of professions, the shift in use of AI and data analytics from process-oriented activities to knowledge-oriented activities, and how the legal and accounting professions are responding.