The Elements of Style, 4th ed. by William Strunk, Jr. and E.B. White     A concise review with examples of the principles of usage and composition, as well as writing tips.

Finding Your Writer’s Voice, A Guide to Creative Fiction by Thaisa Frank and Dorothy Wall

Word Painting, The Fine Art of Writing Descriptively, Revised Edition by Rebecca McClanahan

Language Making Nature, A Handbook for Writers, Artists, and Thinkers by David Lukas

Wired for Story, The Writers’ Guide to Using Brain Science to Hook Readers from the Very First Sentence by Lisa Cron

Writing Fiction, A Guide to Narrative Craft, 10th Edition, by Janet Burroway with Elizabeth Stuckey-French and Ned Stuckey-French

Self-Editing for Fiction Writers, How to Edit Yourself into Print, 2nd Ed. by Renni Browne & Dave King

Examples of metaphors in literature and pop culture: Examples of metaphors

The Emotion Thesaurus: A Writer’s Guide to Character Expression by Angela Ackerman & Becca Puglisi, 2012     I have found this book to be invaluable for showing rather than telling how a character feels.  It’s a handy guide to emotions and the associated body language.

Seven Drafts, Self-Edit Like a Pro from Blank Page to Book by Allison K. Williams

Writing the Novella by Sharon Oard Warner

Crafting the Personal Essay, a Guide for Writing and Publishing Creative Nonfiction by Dinty W. Moore

The Anatomy of Story by John Truby

The Art of Brevity, Crafting the Very Short Story by Grant Faulkner

How to Write a Dynamite Scene Using the Snowflake Method by Randy Ingermanson