Steiner's lectures in 1906
211 lectures in 22 volumes of the collected works. A volume that runs over several years is listed in each of them.
| GA | Title | When | Where | Size |
|---|---|---|---|---|
| 54 | World-Riddles and Theosophy | 1905 to 1906 | Berlin, Hamburg | 22 lectures |
| 55 | Recognizing the Supernatural in our Time | 1906 to 1907 | Berlin, Cologne | 13 lectures |
| 68a | The Essence of Christianity | 1903 to 1910 | Weimar, Leipzig, Düsseldorf | 56 lectures |
| 68b | The Circular Flow of Man's Life | 1904 to 1910 | Cologne, Berlin, Munich | 55 lectures |
| 68c | Goethe and the Present | 1889 to 1912 | Berlin, Munich, Leipzig | 35 lectures |
| 68d | The Nature of Man in the Light of Spiritual Science | 1905 to 1909 | Munich, Berlin, Leipzig | 32 lectures |
| 85 | Appendix to the Public Lectures | 1886 to 1922 | Berlin, Stuttgart, Dornach | 116 lectures |
| 89 | Consciousness — Life — Form | 1904 to 1906 | Berlin | 26 lectures |
| 90b | Self-Knowledge and God-Knowledge II | 1905 to 1906 | Berlin, Cologne, Düsseldorf | 38 lectures |
| 91 | Cosmology and Human Evolution Color Theory | 1903 to 1906 | Landin, Berlin, Haubinda | 83 lectures |
| 93 | The Temple Legend and the Golden Legend | 1904 to 1906 | Berlin | 20 lectures |
| 94 | Cosmology | 1906 | Paris, Leipzig, Munich | 43 lectures |
| 95 | At the Gates of Theosophy | 1906 | Stuttgart | 14 lectures |
| 96 | Original Impulses of Spiritual Science | 1906 to 1907 | Berlin | 20 lectures |
| 97 | The Christian Mystery | 1906 to 1907 | Cologne, Leipzig, Düsseldorf | 31 lectures |
| 246 | Supplements to Member Lectures | 1904 to 1924 | Dornach, Berlin, Stuttgart | 84 lectures |
| 250 | The History of the German Section of the Theosophical Society | 1902 to 1920 | Berlin, London, Paris | 52 lectures |
| 261 | Our Dead | 1906 to 1924 | Dornach, Berlin, Basel | 55 lectures |
| 264 | The History of the Esoteric School 1904–1914: Title I | 1903 to 1915 | Berlin, Munich, Cologne | 62 lectures |
| 265 | The History of the Esoteric School 1904–1914: Title II | 1904 to 1912 | Berlin, Cologne, Munich | 13 lectures |
| 265a | Lessons for the Participants of Cognitive-Cultic Work 1906–1924 | 1906 to 1924 | Berlin, Munich, Basel | 67 lectures |
| 283 | The Essence of Music | 1906 to 1923 | Dornach, Berlin, Stuttgart | 12 lectures |