The Nigerian National Evaluation Conference, the first of its kind organised by the Nigerian Association of Evaluators (NAE), took place in Abuja between 16-19 November in Abuja. 3ie was one of the sponsors of this conference that culminated in the landmark Abuja Declaration on Evaluation, which recognises the importance of country-led monitoring and evaluation systems for the effective development of Nigeria. The conference has been the result of years of work by Nigerian evaluation specialists, stakeholders and partners towards building a platform that focuses on a collective evaluation vision for Nigeria. 3ie conducted a full day of training, ‘Impact evaluation designs and how to develop a valid theory of change’ and How does 3ie support evidence-informed policy in developing countries’ on the first day of the conference. The NAE now hopes to build a federation of bodies that works towards the professionalisation of evaluation in Nigeria by supporting the creation of a stronger demand for and supply of evaluation.