Mighty Ugly!

 
Make It Mighty Ugly: 
Exercises & Advice for Getting Creative 
Even When It Ain't Pretty 
by Kim Piper Werner

I love this book! It's a great one to use when you are feeling stuck, feeling like this creative process is just too hard. This book helps you by encouraging you to make something as ugly as possible. I can't describe to you how liberating this is--you will just have to try it yourself!