This Guidance book is for Kit 4: Evaluation. UNICEF is committed to regular and rigorous evaluation to support organizational learning and accountability. Evaluation enables UNICEF to continually improve its performance and achieve results for children and women. The growth of gender-based violence (GBV) programming in humanitarian settings, coupled with a need for greater accountability and evidence of the effectiveness of humanitarian action, means that more attention is being paid to the evaluation of gender-based violence in emergencies (GBViE) programmes. Evaluation of GBViE programming is an emerging field of practice of which UNICEF is at the forefront.