Capacity development is at the core of UNDP’s work world-wide, and at the core of its role in the mine action sector. The purpose of this handbook is to capture the wealth of UNDP’s experience of developing capacities in mine action programming, and guide on how it can be applied in any context. The guidance in this handbook is intended for the entire mine action sector, including all mine action practitioners from UNDP and the entire UN family, national counterparts and operators on the ground.