Swami Vivekananda (1863-1902) was the foremost disciple of Shri Ramakrishna Paramahansa and a world spokesperson for Vedanta. His lectures, writings, letters, and poems are published as The Complete Works of Swami Vivekananda. He felt it was best to teach universal principles rather than personalities, so we find little mention of Ramakrishna in the Complete Works.
Swami Vivekananda represented Hinduism at the first World Parliament of Religions in Chicago in 1893 where he was an instant success. Subsequently he was invited to speak all over America and Europe. He was a man with a great spiritual presence and tremendous intellect.