This report, published by the Asia Society, examines the strategies used to develop and support strong teaching and school leadership workforces in three very different contexts: Melbourne, Australia; Singapore; and Toronto, Canada. The report contains a cross-city analysis and three in-depth case studies examining each of the cities. Best practices identified across these cities include a shared emphasis on systemic approaches, strong recruitment initiatives, increasingly thoughtful preparation and mentoring, purposeful support for ongoing learning, and proactive leadership development.