Graphic Artist's Guild Handbook of Pricing and Ethical Guidelines. BUY THIS EVERYONE. This has singlehandedly been the most useful book I’ve ever purchased, mainly for deciding on freelance pricing. Every time I get a chance to read a bit, I learn something new. Just buy it.
The Leap Year Project: Learning to Risk & Risking to Learn. This isn’t a design book, but it’s so inspirational. Victor’s story is encouraging, challenging, risky, and empowering. I can’t say enough good things about this book and Victor. Peppered throughout the book, is the story of so many people who took a leap in 2012. Click the title to buy the book and to sign up for a newsletter leading up to LYP 2016.
Just Design: Socially Conscious Design for Critical Causes. Not limited to graphic design, but design in general. I just enjoyed reading this book for fun. It ended up being inspiring though–seeing how others think and the solutions they came up with for various projects.
I hope this was a somewhat helpful list. Keep in mind, these are my own opinions about these books. Some of these books I hated the first time I looked through them, and later learned to deeply appreciate. Like I mentioned before, I think it's important as designers to keep refreshing your basic skills. What books would you recommend?