Book excerpt: On Writing Well, which grew out of a course that William Zinsser taught at Yale, has been praised for its sound advice, its clarity, and for the warmth of its style. It is a book for anybody who wants to learn how to write or who needs to do some writing to get through the day, as almost everybody does. Whether you want to write about people or places, science and technology, business, sports, the arts, or about yourself in the increasingly popular memoir genre, On Writing Well offers you both fundamental principles as well as the insights of a distinguished practitioner. How to Write a Memoir tells you how to write the story of your life. Everyone has a story - whether you're a professional writer or just want to validate your personal and family reminiscences, William Zinsser explains how to do it, and do it well.