This monograph argues that well-established concepts in migration studies such as ‘settlement’ and ‘integration’ do not sufficiently capture the features of adaptation and settling of contemporary migrants. Instead, it proposes the integrative and transdisciplinary concept of anchoring, linking the notions of identity, adaptation and settling while overcoming the limitations of the established concepts and underlining migrants’ efforts at recovering their feelings of security and stability. Drawing on 80 in-depth interviews with Polish migrants in the UK and Ukrainian migrants in Poland, ethnographic and autobiographical research together with an analysis of Internet blogs and forums, the book presents the author’s original concept of anchoring, underpinned by a combination of sociological and psychological perspectives, as well as demonstrating its applications. The book aims not only to provide a theoretical and methodological contribution to better understanding and examining the processes of adaptation and settling among today’s migrants, but also to highlight practical implications useful for the better support of individuals facing changes and challenges in new, complex and fluid societies.