Nationalism is a collection of essays written by Rabindranath Tagore, the renowned Indian poet, philosopher, and Nobel laureate. The book is a compilation of Tagore's thoughts and reflections on the concept of nationalism and its implications on society, culture, and the individual. Tagore's views on nationalism were a response to the prevalent political and social climate during his time, and his critique remains influential and relevant today. "Letters" by Rabindranath Tagore typically refers to a compilation of the letters written by Tagore over his lifetime. Rabindranath Tagore, a prolific writer, poet, philosopher, and Nobel laureate, maintained extensive correspondence with a diverse range of people, including family members, friends, intellectuals, political leaders, and artists. These letters provide valuable insights into Tagore's thoughts, personal life, literary works, and his views on various social and political issues of his time.