James Wongis a botanist, broadcaster, and author. His books include Grow Your Own Drugs (Simon & Schuster), Homegrown Revolution (Weidenfeld & Nicholson), and Grow for Flavor (Firefly), and he is the cohost of TheSecrets of Your Food (PBS). He lives in London.
Emma Derbyshire, PhD, RNutr, is a registered public health nutritionist and an award-winning health writer with more than 100 peer-reviewed publications in the fields of nutrition and public health. For more than a decade, she was a senior lecturer in human nutrition and physiology and now is director of Nutritional Insight Limited, a nutrition consultancy. She lives in London.