The 6th edition of the RHA directly addresses why the lessons from humanitarina experience have not been learned and therefore have not acted as catalysts for improving humanitarian action.
Chapter 3 gives a well-argued explanation of the myriad of reasons why clear and common sense recommendations from evaluations are not acted upon.
Chapter 2's evaluation syntheses provides an insightful account of the distortions that occur in the field as the result of a humanitarian system that still does not function fully in accordance with humanitarian principles.
Chapter 1 gives us a bigger view about what humanitarians realistically hope to acheive in a global humanitarian systems that is so inextricably tied up with international politics.