This paper follows migrants on their journey and suggests policy responses corresponding to each step of this journey. The complexity of the changes individuals and societies are undergoing means that there are no easy answers. The paper deals first with the reasons why people migrate, what they aim to achieve and the immigration conditions to which they are subject, before turning to what they do to adapt and become active citizens of receiving societies. It provides background information and facts on global migratory movements and socio-economic change in Europe. Finally, it describes the accompanying integration challenges and opportunities and makes suggestions for policy responses.