How I Learned To Pitch - A Seattle Mariners coach teaches me to throw a change-up, and much more. By Eric Liu: "Over the last two and a half years, I traveled across the country in search of life-changing teachers and mentors from all different walks. I met race-car drivers, Indian potters, ballet dancers, rappers, research scientists, law professors, Montessori teachers, aerobatic pilots, master carpenters, and many others. The book that emerged from those travels is called Guiding Lights. "