Migration and its implications in terms of the integration of migrants have become a major challenge for most countries in the global economy. They generate many different learning (as well as social, political, and other personal) needs, and thus make big demands on adult education. Sending and receiving societies as well as the migrants, including migrant returners, internal migrants and 2nd and 3rd generation migrants, are all affected. An international Conference in Bonn in November 2007 set out the dimensions of the task, and the challenges that it presents for adult educators. [Abstract presented in English, Spanish, and French.]