Donald Bouton started moonlighting as an Uber driver almost five years ago. That’s not so unusual. A lot of St. Louisans took up ride-sharing as a second job — or even a first one — after it debuted in St. Louis in 2015. It’s the project Bouton launched while he was driving that’s unusual. Beginning in April 2016, he began keeping pen and paper in the backseat of his car. He asked his passengers to share what inspired them and helped them pull through adversity. And what he found was a serious dose of inspiration — and, ultimately, a book. “Backseat Inklings: Driving Positivity into the World, One Rider at a Time” is Bouton’s self-published account of his guests’ responses, unexpurgated and in their own handwriting. Bouton talks about the project in this conversation with host Sarah Fenske.