Advice from William Zinsser — William Zinsser’s On Writing Well: The Classic Guide to Writing Nonfiction has sold over 1.5 million copies. First published in 1976, it’s 7th revised and updated edition came out in 2006. Zinsser, who died in 2015 at 92 years old after writing 17 books, argued for clarity, simplicity, brevity, and…