As Rudolf Steiner became increasingly well known, many different books were sent or given to him—mostly by the authors, editors, and translators themselves. Members of the Anthroposophical Society gave or lent him books as well. Rudolf Steiner was an avid visitor of bookstores and antiquarian bookshops, as preserved invoices, his own statements, and remarks in memoirs attest. Anna Samweber recounts how she once came to the Atlantic Bookstore (Atlantic-Buchhandlung) in Berlin’s Motzstrasse in 1917, where Rudolf Steiner had been rummaging for a copy of the first edition of his Philosophy of Spiritual Activity (Philosophie der Freiheit): “Following his unsuccessful search, I came a short time later to the same bookstore. The ladies who worked there, whom I knew well, drew my attention to the various piles of books lying around and said: ‘As you can see, he’s been at work again!’” (CW 157).
It is likely that, already in Berlin, Rudolf Steiner’s book collection was partly combined with that of his later wife Marie von Sivers—at least as far as belles-lettres, theosophy/occultism, etc. were concerned, with which both were equally occupied. Thus, strictly speaking, the library as it is catalogued here is both that of Rudolf Steiner and also—albeit to a much lesser extent—that of Marie Steiner-von Sivers until 1925.
Even after the building of the Goetheanum had begun, Rudolf Steiner retained his main residence in Motzstrasse in Berlin, where the headquarters of the Anthroposophical Society was also located, despite spending several months in Switzerland each year. In Dornach, he and Marie Steiner-von Sivers lived at first in Haus Brodbeck (today Rudolf Steiner Halde), and then from June 1914 in the Villa Hansi . . . . Since Marie Steiner’s ability to walk was deteriorating, they wished to move back into Haus Brodbeck in 1923: For this, Rudolf Steiner designed an annex with a large eurythmy room so that Marie Steiner could comfortably walk from their living space to the rehearsals. For himself, he set up two small work rooms with many wall cabinets—presumably, these were to house his library. . . .