The Education of a Coach
by David Halberstam
Bill Belichick actually had two childhoods: a normal, American childhood and then a football childhood as well. As a boy, he spoke two languages – English and coach-speak, football version.
Other kids had their hobbies; some collected postage stamps and others had baseball cards, but Bill studied football film. It seemed natural to him, and he had a great aptitude for it – plus, it allowed him to spend a good deal of time with his father.