The process of integration is one of the key aspects of immigrants' successful cohabitation with the majority society. However, opinions differ as to the best ways to promote integration. Despite the fact that the number of immigrants has been rising in most Central and Eastern European countries, not enough attention is given to these issues. Learning from the successes and failures of integration practices in countries with a longer history of immigration is a slow process. Our Integration Theme considers integration to be a two-way process, which involves effort from both the state and immigrants. The texts in the Integration Theme deal with the experience of integration and the development of integration policy in different countries. They present both expert views on integration and the personal experiences of immigrants.