Thought-Forms: A Record of Clairvoyant Investigation is a theosophical book compiled by the members of the Theosophical Society A. Besant and C. W. Leadbeater. It was originally published in 1905 in London. From the standpoint of Theosophy, it tells opinions regarding the visualization of thoughts, experiences, emotions and music. Drawings of the "thought-forms" were performed by John Varley Jr. (grandson of the painter John Varley), Prince, and McFarlane. Source: Wikipedia (en)