ALNAP's Review of Humanitarian Action series forms part of its broader efforts to support and improve learning and accountability within the international humanitarian system. The series aims to provide a means to reflect on performance across the sector by raising awareness of evaluation findings, and assessing the quality of recent evaluations, while also seeking to analyse and report on performance-related issues. This year the Review includes an analysis of what expectation it is reasonable to have of the international humanitarian system, a synthesis of evaluations focussing on proportion and distortion in humanitarian assistance, and a chapter about the utilisation of evaluation findings