In 2016, comedian Mike Birbiglia and poet Jennifer Hope Stein took their 14-month-old daughter, Oona, to the Nantucket Film Festival. When the festival director picked them up at the airport, she asked Mike if he would perform at the storytelling night. She said, "The theme of the stories is jealousy." Jen quipped, "You're jealous of Oona. You should talk about that." And so Mike began sharing some of his darkest and funniest thoughts about the decision to have a child. Over the next couple of years, these stories evolved into a Broadway show, and the more Mike performed it, the more he heard how it resonated --- not just with parents but also with people who resist all kinds of change. So he pored over his journals, dug deeper and created this book.