When a disaster occurs, timely support for recovery and reconstruction efforts is critical to minimize long-term setbacks to sustainable and inclusive socioeconomic development. The Build Back Better Sector Guides, a collection of six guides, provide practical, solution-oriented resources to support clients, partners, and staff of the Asian Development Bank to enhance the climate and disaster resilience of communities, infrastructure, and systems through effective and well-designed post-disaster assistance. Volume 4 provides an overview of good practice solutions, considerations, and lessons learned for building back better in irrigated agriculture systems. It is intended to be read together with Volume 1: Overview.