Bestselling author A.J. Jacobs undergoes a hilarious, heartfelt quest to understand what constitutes family—where it begins and how far it goes—and attempts to untangle the true meaning of the “Family of Humankind.”

Jacobs’s journey takes him to all seven continents. He drinks beer with a US president, finds himself singing with the Mormon Tabernacle Choir, attempts to throw the world’s largest family reunion, and unearths genetic links to Hollywood actresses and real-life scoundrels. After all, we can choose our friends, but not our family.