This new book takes a unique approach to the study of European enlargement, tackling key questions. What kind of understanding of the EU do the enlargement processes speak to? Do decisions to enlarge mainly suggest that the EU is a free market, focusing on potential economic gains? Do they indicate that there is a sense of common European identity? Or is the focus primarily on securing respect for democratic principles and human rights? Offering up-to-date studies of the EU enlargement processes and country-specific in-depth analyses, will be a valuable resource for students and scholars of European studies, international relations and politics.