"Nationalism" is a philosophical treatise by the famous Indian thinker Rabindranath Tagore. In this book, the author examines the complex topic of nationalism through the prism of his own cultural heritage and the coexistence of different cultures. Tagore raises the question of the true meaning of nationalism in the conditions of the colonial empire and develops the concept of cosmopolitanism, which is marked by the rejection of narrow national egoism in favor of general global humanism. This book helps the reader to rethink his ideas about national identity and to see the larger context of human coexistence.