Lessons Learned from ASML traces the journey from underdog start-up to dominant player in one of the world's most volatile industries. Based on interviews, internal notes and archival material, it reconstructs the key managerial decisions behind that rise: how ambitions were set, investments staged, partnerships orchestrated, technologies selected, and setbacks absorbed. Each chapter applies a clear analytical lens and includes brief reflection questions. Together, they connect strategy, innovation and ecosystem coordination in a readable, evidence-based narrative that brings theory into practice without suggesting there is a universal recipe. For leaders, the book offers sharper ways of thinking about complex decisions, a better understanding of how long-term capabilities are built, and a more grounded way of acting in environments defined by uncertainty and change. ASML's lessons as food for thought How easy is it to challenge assumptions across your hierarchy? Which battles is your industry fighting and why? How effectively do customer needs shape your offerings? Can you improve operations in the middle of a downturn? How well are stakeholders aligned when it matters most? How deeply are core principles embedded in daily work? Is your portfolio balanced between today and what's next? Would you propose a plan that risks your own role? How quickly can you adapt to market up- and downturns? How strictly do you guard cultural fit when hiring?   'Few investors would bet their money on this venture today. The story of ASML is therefore not a recipe that can be easily copied by other 'high-tech start-ups'. However, a lot can be learned from looking at what happened.' - Gjalt Smit, 1st CEO ASML From underdog start-up to industry leader, forty years of strategic choices, innovative breakthroughs, and bold choices unraveled