When one hears monitoring and evaluation (M&E) experts speak, the concept ‘triangulation’ often comes up. In a space that can be incredibly technical in nature, M&E can sometimes be too ‘jargony’. Therefore unpacking M&E terms is a critical part of ensuring that M&E is comprehensible to as many people as possible. Tshikululu believes that this, ultimately, will allow for more effective social investment decision-making across the board. So what is triangulation and why is it so important?