James Vaughn Kohl has worked as a clinical laboratory scientist for twenty-six years, and devoted more than fourteen years to researching the relationship between odors and human sexual behavior. Robert T. Francoeur, Ph.D., has authored or edited 34 books including The International Encyclopedia of Sexuality. He is an evolutionary biologist, sexologist, and a professor of human sexuality at Fairleigh Dickinson and New York Universities. Bio James Vaughn Kohl was the first to accurately conceptualize human pheromones, and began presenting his findings to the scientific community in 1992. He con...