I'm an avid reader of K.M. Weiland, and this is by far my favorite of her craft books. Reading this in the midst of writing a book changed everything! Not only did my knowledge of my characters grow tremendously through just the first few chapters (The Lie Your Character believes, The Thing Your Character Wants vs. The Thing Your Character needs, etc.), but my understanding of story structure grew deeper as well.
Creating Character Arcs is the perfect companion to Weiland's books on structure and outlining. Knowing exactly where your character is in their growth is an integral part of your story's structure. Without it, the story remains flat. For anyone who doesn't plot, this book can still get your creative juices flowing. There's also a workbook! To read more from K.M. Weiland, visit her website at www.helpingwritersbecomeauthors.com.