I just finished reading "Ignore Everybody; and 39 other keys to creativity." by Hugh MacLeod. It's actually an extension of his blog: Gaping Void
I really loved Chapter 7 about getting our crayons back. Somewhere along the line of "growing up" our crayons are taken away and we need to demand them back. To do art for the sheer enjoyment of the process and not the possible outcome of the endeavor.
I also REALLY love his art, very real life and he does it all on the back of business cards. Brilliant. Check out his gallery at: http://gapingvoidgallery.com/