The One-Idea Rule: An Efficient Way to Improve Your Writing at School and Work

Focused on a simple principle and designed to bolster writers’ confidence and skills, writing coach at Harvard Business School Mark Rennella offers practical advice for students and budding writers—with the goal of leveling the playing field between beginners and those with more experience.

After a 30-year career as a writer, instructor, and editor, Mark Rennella has crafted a battle-tested method to help students and young professionals who want to improve their writing: the One-Idea Rule,...