This document summarizes a presentation about Community Led Total Sanitation (CLTS). It describes how CLTS originated in Bangladesh in 1999-2000 and has since spread to over 40 countries in Asia, Africa, and Latin America. CLTS is a community-led approach to achieving total sanitation that does not rely on subsidies or top-down directives. It uses participatory methods like community mapping to build awareness of open defecation's negative impacts and empower communities to end the practice collectively. The document outlines challenges to scaling up and sustaining CLTS, including changing mindsets, ensuring facilitator training, and navigating political and institutional barriers.