Soma De Silva is a former UNICEF South Asia Regional Monitoring and Evaluation Adviser. She is a founder member and a two times president of the Sri Lanka Evaluation Association. She has served as thePresident of the International Organisation for Collaboration in Evaluation (IOCE) and as the founderco-chair of EvalPartners, which is a global movement for promoting development evaluation. Her work in promoting institutionalisation of evaluation training in South Asia was instrumental in establishing a postgraduate diploma in Evaluation at the University of Sri Jayawardenepura, the first university program in evaluation in Sri Lanka. Soma worked with a Select Committee of the Parliament to draft the National Evaluation Bill.Besides many official publications, she has authored the book “Theory of Change for Development Success”to help using evaluation in development interventions. Besides her professional focus on development cooperation, Soma has a keen interest in promoting psychological wellbeing of people. She teaches psychology focussing on the incorporation of Buddhist analysis of the mind into psychotherapies. Soma holds a first degree in physical science,postgraduate diplomas in population studies,demography andsampling, statistics and a Masters degree in sociology (Georgetown University). More recently she has earned Masters degrees in applied psychology (Coventry University) and Psychology (Arden University), as well as a PhD in Buddhist Studies from the University of Kelaniya.