Whether in flight from conflict, with the hope of building a better life, or to seize a social or economic opportunity, people have been crossing borders for as long as there have been borders to cross. Modern means of transportation and communication, the globalisation of the labour market, and the ageing of populations in OECD countries will drive migration well into the next decades. The key to maintaining social cohesion during these population movements is to integrate immigrants and their families well into their adopted countries; and education can be a powerful lever to achieve this.