Self-Editing: Two Half Brains Make a Whole Writer, a short, well-written, entertaining, exemplary e-book, gives you so many fun strategies on how to edit your own work.
I loved especially the part about freewriting--something I have practiced for 27 years and has served me well in getting published.
You don’t need to be a professional writer to buy this book. I'd think anyone who wants to write a resume, report, or cover letter could use these ideas. I would also recommend this for homeschoolers or middle school and high school students that are learning composition.
If you want to better your own writing and feel more confident--buy this book. You’ll be glad you did!