Leslie Speight was the owner and director of Homeopathic Publishing Company and later of Health Science Press, through which he published several of his own works on homoeopathic medicine including, Homeopathy and Immunisation and Sports Injuries and their Treatment by Homeopathy and Acupressure, as well as many titles by his wife, Phyllis Speight.In addition to this the Speight's also both made regular contributions to the Heal Thyself, The Homeopathic World journal. Leslie Speight died on the 28th of May, 1995.