On Writing, by Stephen King
Bird by Bird: Some Instructions on Writing and Life, by Anne Lamott
Writing Down the Bones: Freeing the Writer Within, by Natalie Goldberg
If You Want to Write: A Book About Art, Independence and Spirit, by Brenda Ueland
On Writing Well: The Classic Guide to Writing Nonfiction, by William Zinsser
The Elements of Style, by William Strunk, Jr. and E.B. White
Story Physics, Larry Brooks