A.J. Jacobs is an author, journalist, lecturer and human guinea pig. He has written four New York Times bestsellers that combine memoir, science, humor and a dash of self-help. Among his books are The Know-It-All, The Year of Living Biblically, and Thanks a Thousand, in which he travels the globe to thank everyone who had even the slightest role in making his morning cup of coffee. He is a contributor to NPR, The New York Times, and Esquire, among others. He has given several TED talks, including ones about living biblically, creating a one-world family, and living healthily that have amassed over 10 million views. He was the answer to 1-Down in the March 8, 2014 New York Times crossword puzzle.