This article introduces seven ethical issues raised by the introduction of artificial intelligence (AI) at work. Each ethical issue is presented in connection to broader and older philosophical topics as well as topics in the more specialised literature on applied ethics of technology. The seven issues are: (1) How to govern the impact of AI on job losses and other social issues raised by the reshaping of the job market? (2) AI may contribute to create new forms of oppression and violation of rights of the workforce; (3) AI may negatively affect workers' (moral) agency, autonomy or responsibility; (4) AI may create hidden labour, that is, economically valuable tasks are performed by human agents without their work being sufficiently recognised, rewarded or protected, with (technological) companies acquiring an unfair gain and an increasing socio-economic power over people; (5) To what extent can AI affect the opportunity for people to perform good or meaningful work, and how should meaningful work be defined in a pluralistic society? (6) The introduction of AI at work may have a broader impact on social values and norms; (7) Who is responsible for making AI have a positive rather than a negative impact on ethical and societal values? In addition to providing a critical introduction to the ethical debate on AI and the future of work, the article also positions on this broader ethical and philosophical map the five articles of The Journal of Ethics special issue 'Artificial Intelligence and the Future of Work'.