Children have become an important part of large-scale population movements both within and between countries and are likely to be increasingly affected in the next decades as a result of globalisation, socio-economic shifts and climate change. Yet, in debates on both child protection and migration, children who move are largely invisible. As a result, policy responses to support these vulnerable children are fragmented and inconsistent. This report aims to give children a voice and allow them to describe in their own words the causes of why they go on the move and analyse the range of positive as well as negative impacts that migration can have on their lives.