This Guidance Framework presents Interpeace’s principles and methodology for integrating mental health and psychosocial support (MHPSS), peacebuilding, and livelihoods programming. It offers practical guidance to bridge gaps between these sectors by clarifying key concepts, methods, and tools, and aims to foster mutual understanding among practitioners from different disciplines. Designed as a primer for Interpeace staff and partners, the Framework seeks to break down silos, enhance cross-sectoral collaboration, and strengthen the collective impact of integrated programming, contributing to ongoing learning, research, and practice in the field.