I use Bonnie's book, The Curious Case of the Misplaced Modifier: How to Solve the Mysteries of Weak Writing
as a reference for my own work. Anyone who wants to improve their writing can benefit from reading and studying this book. It is not a simple, dry list of grammar rules. Set in the context of a mystery story, the book tackles passive voice, weak verbs, vague words and other common mistakes. Bonnie says in her introduction that she wants to help people build better sentences. Even the book layout is easy to follow. The Sentence Sleuth website is filled with information, too. Check it out if you want to improve your own writing.
