Book Freak is a newsletter with advice you can use to improve the quality of your life. I try to send one out 3-4 times a month.Atul Gawande is a MacArthur Fellow, a general surgeon at the Brigham and Women's Hospital in Boston, a staff writer for The New Yorker, and an assistant professor at Harvard Medical School and the Harvard School of Public Health.Here are four pieces of advice from his book, The Checklist Manifesto.