Using evaluation to improve performance has become a priority for Organisation for Economic Cooperation and Development (OECD) policy makers and practitioners in the field of public information/communication and education about development. This Policy Brief is an introduction to evaluation, with proposals on how official donors and civil society organisations can overcome key evaluation challenges. Experiences and lessons learnt at the March 2007 OECD Experts' Workshop "Development Communication, Advocacy and Education: Tips and Tools for Improving Evaluation" are presented in the context of why it matters for OECD countries to improve their performance in informing and educating citizens about global development issues. Three approaches to awareness raising and learning are discussed: (1) information/communication; (2) advocacy; and (3) education. The report may serve as a reference and guide for official donors using evaluation to leverage institutional support and increased financial resources for this work. It should also enable greater collaboration between donors and practitioners whose work is financed by official development assistance (ODA). This Policy Brief is an introduction to evaluation; and does not investigate the complexities and specificities of what constitutes best practice in information/communication, advocacy and development education, nor provide guidelines, but recommends that this be undertaken in future work. (Contains 22 notes, 3 boxes, 2 figures and 2 tables.)