I know what you must be thinking, "Zack is reading Pressfield books so he can pad his yearly book count." In fact, that's incorrect. I'm reading them because they are powerfully motivating despite their small size. This book is about the dedication required to really finish a project at a high level. Perfect timing!
This quick read falls into the category of self-help for authors. Like The War of Art (same author), this is essential reading.
When I started writing my own book, I didn't understand the author's premise. I wasn't having self-defeating resistance to writing, I was enjoying every minute of it. But then, somewhere along the path to maturity, it hits. The inexplicable self-defeating cycle of prioritizing other things. Read this book if you struggle staying on track.