Book excerpt: This book proposes a conceptualisation of nationalism with a multilevel operational character. It offers three different perspectives on nationalism that consider both the discursive structure and the discursive agency of nationalism. It also demonstrates a number of intra-phenomenal and extra-phenomenal constraints on nationalism. This book underlines that nationalism in contemporary Europe should not be regarded in terms of methodological homogeneity and conceptual uniformity, ideological rigidity or strategic consistency but rather as a contested, segmented, bounded and contextual phenomenon.