Prior to becoming a Professor of Biology for 28 years at the City University of New York, Richard worked in the theatre on Broadway and, later, as a construction worker, often scaling forty stories to get the job done. Rachael, now a professor emeritus at Mt. Sinai School of Medicine in New York, held more than fifty jobs during her pre-writing career including driving a taxi, assistant to a self-made millionaire, emergency-room coordinator, and teaching sign language to a chimpanzee. Together they are the bestselling authors of The Carbohydrate Addict’s Diet book series, which has sold over eight million copies worldwide. The 13th Apostle is their first work of fiction.