What is a good definition for leadership in business? A letter of authorization may aid a person who requires help to perform critical duties in a formal setting. Legally, a letter of authority is sufficient to delegate sensitive legal, health or financial obligation to another person or entity. Typically, the letter of authorization is typed following an acceptable professional business format and applies correct grammar.
Tim O'Brien Biography. The author Tim O'Brien is not unlike the character called Tim that he created for his novel, The Things They Carried, as both author and character carry the stories of similarly experienced lives. O'Brien not only shares the same name as his protagonist but also a similar biographical background.
Not to be confused with the science writer Timothy Ferris or the musician Tim Farriss. Timothy Tim Ferriss (born July 20, 1977) is an American author, entrepreneur, angel investor, and public speaker. He has written a number of self-help books which have appeared on the New York Times, Wall Street Journal, and USA Today bestseller lists, starting with The 4-Hour Workweek. Ferriss is also an angel investor or an advisor to Facebook, Twitter, StumbleUpon, Evernote, and Uber, among other companies.