Millions of children never see inside a classroom. Others drop out due to overcrowded classes, conflict, or because they're a girl.
In the UK, the poorest children do less well at school than wealthier classmates - and low literacy is linked to low pay and unemployment.
But education offers hope to kids whose worlds have turned upside down.
We're working to improve early years learning and keep childcare costs on the political agenda.
We ensure children in humanitarian crises learn and put children's rights at the heart of all we do.