Judge Nelson Johnson wants attorneys to write and argue better. The former state Superior Court judge turned award-winning author, who penned the book that inspired the HBO series “Boardwalk Empire,” is in a great position to give advice. His newest book, “Style & Persuasion: A Handbook for Lawyers”—published by the New Jersey State Bar Association—offers concepts for attorneys of every ilk to build confidence and transform their writing styles. Johnson spoke recently about the inspiration behind his latest work, the most common writing and arguing mistakes lawyers make and practical tips for improvement. His responses have been lightly edited for clarity. 

Where did the idea come from? Why did you write it?