In the last two decades, the use of the term "nationalism" has increased steeply, even as the word takes on different shades of meaning. "I remain in the curious position of disliking, distrusting, disapproving and fearing nationalism wherever it exists," comments Eric Hobsbawm (1917-2012), "but recognizing its enormous force, which must be harnessed for progress if possible." In this collection of Hobsbawm's writings on nationalism, we see some of the critical historical insights he brings to bear on this contentious subject, which is more relevant than ever in an age when the internet and the globalization of capital threaten to reshape national boundaries.