10 (+2) commandments for editing another writer's work

Over on his blog, the ever-wise Nathan Bransford, author and former literary agent, offers up Ten Commandments for Editing Someone's Work:   1. Remember that it's not your book. 2. Find out what the author is looking for before you start editing. 3. You're not doing anyone favors by being too nice. 4. You're not doing anyone favors [...]