Mark Warren has been teaching survival skills and nature classes for forty-five years. In 1999 he won the World Longbow Championship. In 2000 he became the U.S. Whitewater Canoe Champion in slalom and wildwater combined. He is the author of the memoir Two Winters in a Tipi, published by Lyons Press, Wyatt Earp: An American Odyssey, and Indigo Heaven, a novel. He lives with his wife, Susan, in the Appalachian Mountains of Georgia at his school, Medicine Bow.

David Gillespie is a lawyer and the best-selling author of the Sweet Poison books, a series about how we are all poisoning ourselves with sugar. He followed those up with Big Fat Lies and Toxic Oil both of which target the dangers of seed oils in our diet.

Having upset the dietetics industry by writing about stuff in which he has no qualifications, he then turned his focus to something else he is unqualified to write about, education. In Free Schools, David takes a parent's eye-view of the research and concludes that all the rolling green hockey fields and architect designed amphitheatres won't make a jot of difference to the education your child is likely to receive.

In Eat Real Food, David returns to the topic of human nutrition and delivers the ultimate practical guide to avoiding the two most toxic substances in the modern food supply, sugar and seed oil.