I reach for these books during the writing process:

Goal, Motivation & Conflict: The Building Blocks of Good Fiction by Debra Dixon

Save the Cat! by Blake Snyder (This concept and way of creating story was a game changer for me!)

Believable Characters: Creating with Enneagrams by Laurie Schnebly (Taking Laurie’s online classes: Plotting Via Motivation is a good example, was another writing, game-changer for me! Thank you, Laurie!)

The Snowflake Method by Randy Ingermanson (Best method to create your pitch, your synopsis and see your character arc. Love Randy!)

The Writer’s Journey by Christopher Vogler

Creating Character Arcs by K.M. Weiland

The Emotion Thesaurus: A Writer’s Guide to Character Expression by Angela Ackerman & Becca Puglisi (I actually recommend this whole series!)

Writing the Breakout Novel by Donald Maas

Building Believable Characters by Marc McCutcheon

Plot & Structure and Revision & Self-Editing by James Scott Bell

Scene & Structure by Jack M. Bickham

The Novel Writer’s Toolkit by Bob Mayer

The First Five Pages by Noah Lukeman

Screenplay: The Foundations of Screenwriting by Syd Field

A Writer’s Guide to Active Setting by Mary Buckham