"From Facebook's COO and Wharton's top-rated professor, the #1New York Timesbest-selling authors ofLean InandOriginals:a powerful, inspiring, and practical book about building resilience and moving forward after life's inevitable setbacks. After the sudden death of her husband, Sheryl Sandberg felt certain that she and her children would never feel pure joy again. "I was in 'the void,'" she writes, "a vast emptiness that fills your heart and lungs...