Thought Forms: A Record of Clairvoyant Investigation is a seminal occult book compiled by the leaders of the Theosophical Society, Annie Besant and C. W. Leadbeater. It was originally published in 1905 in London. According to the teachings of Theosophy, thoughts and emotions create distinctive patterns of color and form in the human aura—visible only to those who are gifted with a sufficient degree of clairvoyance and can see beyond our normal perceptions. Besant and Leadbeater dictated their clairvoyant "thought-forms" to a group of friends who then created the 58 magnificent illustrations contained in the book. This book was a major influence on the artists Hilma Af Klint and Wassily Kandinsky among many others but has long been overlooked as a foundational pillar in art history.