Rudolf Steiner's book, Theosophy, An Introduction to Supersensible Knowledge of the World and the Destination of Man (published in German as, Theosophie. Einfuerung in uebersinnliche Welterkenntnis und Menschenbestimmung), is a brief but comprehensive “study of man” as well as a consideration of man's connection with worlds with which he is connected in one way or another. It includes both obvious and subtle aspects of that complicated entity known as the human being. This book first appeared in 1904 and has gone through numerous editions in the original German and in English translation.

The contents of the book are:

    THE ESSENTIAL NATURE OF MAN
        The Corporeal Nature of Man
        The Soul Nature of Man
        The Spiritual Nature of Man
        Body, Soul and Spirit
        
    RE-EMBODIMENT OF THE SPIRIT AND DESTINY
        
    THE THREE WORLDS
        The Soul World
        The Soul in the Soul World after Death
        The Spirit Land
        The Spirit in the Spirit Land after Death
        The Physical World and Its Connection with
            the Soul and Spiritland
        Thought Forms and the Human Aura
        
    THE PATH OF KNOWLEDGE

Known Publications:

• Theosophie. Einfuerung in uebersinnliche Welterkenntnis und Menschenbestimmung, German language editions: 1904, 1908, 1910, 1910, 1910, 1914, 1915, 1916, 1918, 1918, 1918, 1919, 1920, 1920, 1920, 1920, 1920, 1920, 1922, 1922, 1922, 1922, 1922, 1943, 1946, 1948, 1948, 1955, 1961, 1973, 1978, 1987 ISBN 3-7274-0090-0,
• Theosophy, Kegan Paul Co., London, 1910, 212 pp., translated from the 3rd German edition of 1910 by E. D. S.
• Theosophy, Rand McNally, Chicago and New York, 1910, 224 pp. plus notes, translated from the 3rd German edition of 1910 by E. D. S.
• Theosophy, Kegan Paul Co, London, 1922, 144 pp., translated from the 18th German edition of 1920
• Theosophy, Rudolf Steiner Press, London, 1922, 1929, 1942, translated from the 19th German edition of 1922
• Theosophy, Anthroposophic Press, New York, 1923, 133 pp., translated from the 18th German edition of 1920
• Theosophy, Anthroposophic Press, New York, 1932, 133 pp., translated from the 18th German edition of 1920
• Theosophy, Anthroposophic Press, New York, 1946, 273 pp., translated from the 19th German edition of 1922 by H. Monges
• Theosophy, Rudolf Steiner Press, London, 1954, translated from the German by M. Cotterell
• Theosophy, Rudolf Steiner Press, London, 1965, 151 pp., translated from the 28th German edition of 1961 by M. Cotterell and A. P. Shepherd
• Theosophy, Rudolf Steiner Press, London, 1970, 151 pp., translated from the 28th German edition of 1961 by M. Cotterell and A. P. Shepherd
• Theosophy, Anthroposophic Press, New York, 1971, 1974, 1977, 1980, 1985, 195 pp., translated from the 19th German edition of 1922 by H. Monges and G. Church ISBN 0-91014-265-3, Cloth; 0-88010-179-2, Paper; 0-88010-270-5, Cloth.
• Theosophy (bi-lingual edition), Rudolf Steiner Press, London, 1975, translated from the 19th German edition of 1922 by M. Cotterell and A. P. Shepherd
• Theosophy, Anthroposophic Press, New York, 1994 translated from the German by Catherine E. Creeger ISBN 0-88010-373-6,
• Reprinted by Kessinger Publications.