Drop Dead Healthy: One Man's Humble Quest for Bodily Perfection

It's All Relative: Adventures Up and Down the World's Family Tree

Thanks A Thousand: A Gratitude Journey

The Guinea Pig Diaries: My Life as an Experiment

My Life as an Experiment: One Man's Humble Quest to Improve Himself by Living as a Woman, Becoming George Washington, Telling No Lies, and Other Radical Tests