David Kirby is author of the critically acclaimed book Evidence of Harm, Mercury in Vaccines and the Autism Epidemic: A Medical Controversy, which debuted  on The New York Times bestseller list and is still widely read today. A professional journalist for over 15 years, Kirby has appeared on such venues as Meet the Press, Larry King Live, The Today Show, Imus in the Morning, CNN, Montel Williams, Air America, and many others.

Kirby, whose next book is about Factory Farming, is a regular contributor to the Huffington Post, has been a professional journalist for over 15 years, including extensive contributions to The New York Times. He was a foreign correspondent in Mexico and Central America from 1986-1990. Kirby has also worked in politics, medical research and public relations. He lives in Brooklyn, NY.