Jnana Yoga is a book written by Swami Vivekananda, a renowned Indian Hindu monk, and philosopher who played a vital role in introducing Vedanta and Yoga to the Western world. The book was first published in 1899 and is a profound guide to the path of Jnana Yoga, one of the main paths of Yoga. Jnana Yoga is the path of knowledge and wisdom, which involves the intellectual pursuit of the ultimate reality through the analysis and inquiry of the nature of the self and the universe. The book explores the different aspects of Jnana Yoga, including the nature of reality, the importance of discrimination, the practice of meditation, and the stages of spiritual progress on this path. In the book, Swami Vivekananda emphasizes the importance of a rational and scientific approach to spirituality, and how the pursuit of knowledge and wisdom can lead to the realization of the ultimate reality. He also highlights the practical application of Jnana Yoga in everyday life, and how it can help individuals transcend the limitations of the ego and attain liberation. Overall, Jnana Yoga is a profound and insightful guide to the path of knowledge and wisdom, and a valuable resource for anyone interested in exploring the path of Jnana Yoga.