The anthroposophy of Rudolf Steiner is not a theoretical system, but the results of research based on direct observation. As Steiner's research was so vast and conducted over such a long period of time, no single book can be said to contain the whole of his spiritual teaching. However, of all his books on occult science, also known as esoteric science, come closest. Steiner even referred to it as 'an epitome of anthroposophical spiritual science'. 

Rudolf Steiner uses the history of Atlantis and Lemuria to discuss the esoteric evolution of man. He covers in more detail what is suggested in An Outline of Occult Science. There was a time when a continent called Atlantis still lay between Europe and America. This portion of the worlds surface was at one time land; this land now forms the bottom of the Atlantic Ocean. Plato alluded to the last remaining remnant of that lost continent when he spoke of the Island of Poseidon.

The Way of Initiation: Knowledge of the Higher Worlds and Its Attainment is Rudolf Steiner’s guide to the initiate of any esoteric belief system. Essential for the novice and complimentary to the adept, this text elucidates a path through the inner self as a method to access higher planes of existence. This edition has been modernized for students of the present time and generation.

Originally published in 1894, Rudolf Steiner's Die Philosophie der Freiheit was considered by Steiner to be his most enduring work above all others. This is the first English translation, which was done in 1916. Two years later, in 1918, he revised it to be more in line with The Theosophical Society's philosophy. In many ways, this edition is truer to his spirit then all other translations, including some of the modern ones.  

In the beginning, form was given to all created things by the Gods. This power of giving form has passed from the Gods to men, in so far as the mineral kingdom is concerned. In ancient traditions it was taught that man must accomplish the task of transforming the Earth in fulfillment of a threefold goal, namely the realization of truth, beauty, goodness. It is for man to make the Earth into a temple of truth, beauty, and goodness. And then, those who come after him will look upon his work as we now look upon the mineral world which came forth from the hands of the Gods.