Ultimately the product that any writer has to sell is not the subject being written about, but who he or she is.

Don't try to guess what sort of thing editors want to publish or what you think the country is in a mood to read. Editors and readers don't know what they want to read until they read it. Besides, they're always looking for something new.

Be grateful for every word you can cut.

You can solve most of your writing problems if you stop after every sentence and ask: what does the reader need to know next?

Writing is hard work. A clear sentence is no accident. Very few sentences come out right the first time, or even the third time. Remember this in moments of despair. If you find that writing is hard, it's because it is hard. It's one of the hardest things that people do

I try to make what I have written tighter, stronger and more precise, eliminating every element that's not doing useful work. Then I go over it once more, reading it aloud, and am always amazed at how much clutter can still be cut.

Every successful piece of nonfiction should leave the reader with one provocative thought that he or she didn't have before. Not two thoughts, or five - just one. So decide what single point you want to leave in the reader's mind.