The Early Period of Theosophy in Europe is a valuable work by the British journalist, writer, occultist and member of the Theosophical Society, Author of the famous book Esoteric Buddhism by Alfred Percy Sinnett (1840-1921). In it, Author introduces the reader to what happened in the Theosophical Society at the initial stage of its existence (the last quarter of the 19th century – the first decade of the 20th century). The book contains unique information about the activities of Theosophists, in particular, H. P. Blavatsky and G. Olcott. Author reveals the internal mechanism of society’s activities, provides valuable details, and conducts a deep psychological analysis of the personalities of those who, despite difficulties and adversities, brought theosophical knowledge to the world. The publication also contains the autobiography of A.P. Sinnett (with minor abbreviations). For lovers of the occult and esotericism, for everyone interested in the history of the Theosophical Society.