The Hero With A Thousand Faces

Author: Joseph Campbell
Publisher: Mythos Books
Comments: Detailed analysis of mythic structure and how it applies to all forms of literature.

The Art of Dramatic Writing

Author: Lajos Egri
Publisher: Simon and Schuster
Comments: Geared towards writing plays, but the analysis of character and construction is equally valid for short stories, novels, and fan fiction.

Writing Down the Bones

Author: Natalie Goldberg
Publisher: Shambala Publications, Inc.
Comments: Filled with advice on writing—how to get started, giving yourself permission to write (and screw up), tips on how to control the internal editor, and more.

Writing Science Fiction and Fantasy

Author: Crawford Killian
Publisher: Self-Counsel Press
Comments: One of the best books on writing sci-fi and fantasy I've personally read. It even gives a nod to the validity of homosexual characters.

The Weekend Novelist

Author: Robert J. Ray
Publisher: Dell Publishing
Comments: How to squeeze writing into a busy lifestyle, and how to get it done, one weekend at a time.

The Elements of Style

Authors: William Strunk, Jr., and E.B. White
Publisher: Macmillan Publishing Co, Inc.
Comments: A clear and concise guide to style: word use, sentence structure, basic rules of grammar.

Dialogue

Author: Lewis Turco
Publisher: Writer's Digest Books
Comments: How to get your characters talking to each other in a way that vividly reveals who they are, what they're doing, and what's coming next in your story.

The Comic Toolbox

Author: John Vorhaus
Publisher: Silman-James Press
Comments: It's harder than it looks to write comedy. This book tells you how to do it.

Writing a Novel and getting published

Author: Nigel Watts
Publisher: NTC Publishing Group
Comments: Has excellent advice on transforming an idea into a well-developed story, including info on plot, character, and theme development. Also has practical advice on dealing with writer's block.