Double exposure is a photographic technique that combines two different images into a single frame. This technique has been around since the 1860s, with William H. Mumler being one of the pioneers, using it to create what he called "spirit photography." In the modern era, double exposure has seen a resurgence in popularity across various mediums, appreciated for its ability to create surreal and dreamlike imagery. Did you know? Double exposure was originally a result of accident or error, with photographers discovering the technique when they inadvertently exposed the same piece of film twice. It has since evolved into a deliberate and creative method used by photographers and filmmakers to tell complex visual stories. The Midlibrary score is 8/9 (the cat again!).