Undocumented migrants and their everyday lives : The case of Finland Chapter 1. Introduction Chapter 2. Conducting research about undocumented migrants Chapter 3. Becoming undocumented: Legislation and asylum process in Finland Chapter 4. Undocumented migrants’ everyday lives in Finland Chapter 5. Healthcare of undocumented migrants Chapter 6. Internet and social media use of undocumented migrants Chapter 7. Conclusions. This open access monograph provides an overview of the everyday lives of undocumented migrants thereby focusing on housing employment social networks healthcare migration trajectories as well as their use of the internet and social media. Although the book’s empirical focus is Finland the themes connect the latter to broader geographical scales reaching from global migration issues to the EU asylum policies including in the post 2015 situations and during the COVID 19 pandemic as well as from national political and societal issues regarding undocumented migrants to the local challenges opportunities and practices in municipalities and communities. The book investigates how one becomes an undocumented migrant sometimes by failing the asylum process. The book also discusses research ethics and provides practical guidelines and reflects on how to conduct quantitative qualitative and mixed methods research about undocumented migrants. Finally the book addresses emerging research topics regarding undocumented migrants. Written in an accessible and engaging style the book is an interesting read for students scholars policymakers and practitioners.