In the early days of the Covid lockdown, many of us took up new hobbies, like playing guitar or baking bread. But Peggy Orenstein went a little further. A lifelong knitter, Peggy decided to try making a sweater from scratch. She taught herself to shear sheep, spin and dye yarn, and other skills. The surprising life lessons she learned are the subject of her new book, "Unraveling: What I Learned About Life While Shearing Sheep, Dyeing Wool, and Making the World's Ugliest Sweater."