 Probably his most notable work is the book "The Art of Expressing the Human Body", in which he shows the results of a five-year search in Bruce Lee's notes trying to find the fighter's original bodybuilding program.John Little has also devoted much effort to popularizing the works of philosopher and historian Will Durant in the 21st century.He founded and heads the Will Durant Foundation, which is an effort to keep Durant's ideas and thoughts alive in the modern era, and has revived some previously unpublished writings of Durant through books like "Adventures in Philosophy" and "An Invitation to Philosophy," which feature some debates and symposiums held by Durant.