Artificial intelligence (AI), the digital transition, the transition to formality, and the green and just transition are rapidly transforming labour markets and intensifying uncertainties. These four interconnected transitions are reshaping employment relationships and work organisation, while affecting job quality and quantity and placing pressure on social dialogue, collective bargaining, and trade union strategies. This moment demands proactive action, anticipation, adaptation, and innovation from workers and their organisations, making strong and knowledgeable trade unions essential. The Third Edition of the Global Workers Academy (GWA) on Transitions places a focused spotlight on artificial intelligence and its intersections with the three transitions, aligning with the 2026 ILO International Labour Conference, where the proposed Convention and Recommendation on Decent Work in the Platform Economy will undergo final negotiations. Building on the achievements of 2024 and 2025, and using a competence‑based approach, the Academy equips trade unions to anticipate disruptions, leverage opportunities, influence global and national debates and policies, defend decent work and social justice, and negotiate worker‑centred AI and digitalisation frameworks.