7Collected here in this 5-in-1 omnibus edition are five of Rudolf Steiner's most important works including Theosophy, an Introduction, An Esoteric Cosmology, Intuitive Thinking as a Spiritual Path, An Introduction to Waldorf Education and Other Essays, and how to Know Higher Worlds. Rudolf Steiner was an Austrian philosopher, literary scholar, educator, artist, playwright, social thinker, and esotericist.