The 10 Best Books for Writers

Here's a link to the Editor Unleashed blog's "The 10 Best Books for Writers" post. I have read a few of these but not most of them. Part of the reason is that I'm not big on motivational books. I'm already motivated to write. Most of what I read is about the craft of writing and editing, and lately about the whole publishing process: query letters, pitches, synopses.

I'd have to put Novelist's Essential Guide to Crafting Scenes by Raymond Obstfeld, and especially the final chapter, Revising at the top of my list of writing books. What are your favourites?