The Crewe Cirlcle was a spiritualist photography group based in Crewe, England in the latter half of the 19th century.[1] The group was founded by William Hope and its photography was investigated by Sir Arthur Conan Doyle.[2] Doyle later went on to write the book The Case for Spirit Photography based on his investigation.[1] In later years many of the photographs were found to be confirmed as fraudulent double-exposures.[1][3]