Sally Kohn: My first book was called The Quarter Life Breakthrough. It was really thinking about my search for meaningful work and young people trying to find careers with purpose, she says. And I wrote about that experience and I self-published a book that sold 10,000 copies,. Then led to a book deal and to a speaking career which is kind of howKohn speaks at companies around engaging millennials in the workplace. She started writing about her own experience with loneliness as an extroverted person but also lost one of her best friends aged 32 from brain cancer.