An updated edition of the essential guide for all scientists--from undergraduates to senior scholars--who want to produce prose that anyone can understand. Scientific writing is often dry, wordy, and difficult to understand. But, as biologist and experienced teacher of scientific writing Anne E. Greene shows in Writing Science in Plain English, writers from all scientific disciplines can learn to produce clear, concise prose by mastering just a few simple principles. This short, focused guide presents roughly a dozen such principles based on what readers need to understand complex information, including concrete subjects, strong verbs, consistent terms, organized paragraphs, and correct sentence structure. Greene illustrates each principle with real-life examples of both good and bad writing and shows how bad writing might be improved. She ends each chapter with revision exercises (and provides suggested answers in a separate key) so that readers can come away with new writing skills after just one sitting. To help readers understand the grammatical terms used in the book, an appendix offers a refresher course on basic grammar. For this second edition, Greene has incorporated the latest research on what makes writing effective and engaging and has revised or replaced exercises and exercise keys where needed. She has also added new features that make it easier to navigate the book. A new resource for instructors who use Writing Science in Plain English in their classes is a free, online teacher's guide. Drawn from Greene's long experience teaching students how to write science clearly, the teacher's guide provides additional lectures, assignments, and activities that will inform and enliven any class.