Gene Stone is an American editor and writer. He is best known as the ghostwriter or co-author of several important or bestselling books, such as Stephen Hawking’s “A Brief History of Time” and Tim Sanders’ “Love Is the Killer App.” In 2006, he collaborated with Rip Esselstyn on “The Engine 2 Diet.” Ever since then, he is focused on writing or co-writing books on whole-food, plant-based nutrition.