This edition, based on the original Art of Knowledge of Knowledge Exchange: A Results-Focused Planning Guide for Development Practitioners, is customized for practitioners in the water sector to facilitate designing, implementing, and measuring results from their knowledge exchange initiatives. This guide includes and refers to case studies and other examples of successful knowledge exchange initiatives in the water sector and also the lessons learned from implementing these initiatives for high development impact. It also reflects the experience of dozens of World Bank Group staff, knowledge and learning professionals, government officials, and other international and development practitioners who have successfully integrated knowledge exchange as a part of a larger change process.