Chris Hadfield ends his book, An Astronaut's Guide to Life on Earth with a metaphor of thanksgiving to his editor - "you have been through my words so many times, you truly scarily know me. It's an intimacy that conductors must have with new scores, ..."
Good book to read. Good advice and well balanced. A true 'zero'. Whole like the Hebrew letter samech, ס, in a sans-serif font.