As this book states in the introduction, "self-editing is probably the only kind of editing your manuscript will ever get." Gone are the days when editors actually edited or gave suggestions on edits the manuscripts they felt worthy of publication. Now days writers are on their own.
Written by two professional editors, Self-Editing For Fiction Writers covers some of the most difficult characteristics of writing that authors need to think about: showing vs. telling, point of view, and dialogue among them They also cover a few things that most other books on editing don't: beats, proportion, interior monologue, and sophistication.
Impressions: This is one of the best books on editing I've read. It's clear and concise, and the concepts are made easy to understand, which also made it a very quick read. I even found myself skipping forward to look for the cartoons, then going back to finish reading. Like most books on writing, I don't necessarily agree with everything the writers suggest, but the book still landed on my recommended bookshelf.
Updates: Since reading this book, I've reread it and tend to check back through it occasionally with things I'm having trouble with or need a little advice on.